ALBERT

Description: In December 1910 the Zoological Garden of Rotterdam obtained, from a dealer, an interesting semi-adult female of a Cercopithecus, said to be imported from the Upper Congo, and belonging to the Mona-group as defined by Mr. R. I. Pocock in Proc. Zool. Soc. 1907, p. 708. This specimen belongs, as far as I am aware, to a hitherto undescribed species, which I propose to name Cercopithecus petronellae.

Description: I may be allowed to furnish a few additional remarks concerning the above named list, which Dr. van Oort was so kind to prepare on a number of Javanese birds collected under my personal supervision for account of the Leyden Museum. The birds were for the greater part shot and the skins prepared by half-caste and native hunters, who also supplied mo with the native names.

Description: Odontomachus haematodes L. ♀ ♀ ♂ — Semarang (Februar). Odontomachus rixosus Smith — Toentang.

Description: Since May of this year the Museum of Natural History at Leyden is carrying into execution the inquiry into migration and other movements of birds in the Netherlands by means of aluminium rings. The results will be published in this periodical and at the same time in Dutch in the periodical of the „Nederlandsche Ornithologische Vereeniging”. It is not necessary to give here particulars about our method of working or about the rings used, only I will remark that our rings are of ten sizes. The smaller rings are marked MUSEUM the larger ones MUSEUM NAT. HIST., all of course also LEIDEN LEIDEN—HOLLAND numbered. Since May more than 2500 rings have been sent to 40 persons, willing to co-operate at the scheme for marking birds in our country. As far as I can see from the received schedules, filled-in by the markers, 1165 of these rings have been used for the following 31 species: Ciconia ciconia 3, Phalacrocorax carlo 6, Anas boschas 160, Nettion crecca 2, Larus argentatus 84, Larus ridibundus 381, Sterna cantiaca 138, Sterna fluviatilis 170, Sterna minuta 2, Recurvirostra avosetta 14, Haematopus ostralegus 17, Vanellus vanellus 23, Totanus totanus 8, Pavoncella pugnax 19, Athene noctua 1, Alauda arvensis 3, Sturnus vulgaris 26, Turdus musicus 17, Phoenicurus titys 9, Aëdon luscinia 3, Accentor modularis 3, Muscicapa grisola 1, Phylloscopus collybita 1, Parus major 10, Parus coeruleas 2, Anorlliura troglodytes 4, Hirundo rustica 20, Delichon urbica 2, Fringilla coelebs 9, Chloris chloris 6, Passer montana 1, Passer domestica 18 and Emberiza citrinella 2. Of these 1165 ringed birds, up to the beginning of November, 22 have been recovered, viz.: Anas boschas, all marked at Ellemeet, on Schouwen, province Zeeland, by Mr. A. Man in ’t Veld.

Description: The increase of the collection of indigenous birds of the Leyden Museum during the last twelve months was an important one. Not less than 787 skins and more than 800 eggs in clutches have been added to the collection. Among the skins there are again some very interesting species such as: Megalestris skua, Cepphus grylle, Casarca casarca, Picus martius, all rare birds in our country. I have the pleasure to mention the following gentlemen, who presented our collection with more or less interesting examples: F. E. Blaauw, J. Boonstra, C. de Bruyn, A. Burdet, C. F. H. Dumont, R. van Eecke, Jhr. W. C. van Heurn, C. J. van der Klaauw, A. Kohlbeck, P. de Koning, E. Loeb, Mr. H. A. Lorentz, M. van Mens, H. M. Rose, Jhr. F. de Roy van Zuidewijn, B. Scheelings, Dr. H. E. Th. van Sillevoldt, Ch. van Spall, G. S. van der Spruyt, the late C. N. Tieleman, F. A. Verster van Wulverhorst, F. H. Verster and J. C. Wäkerlin; more special thanks are due to Messrs. R. van Eecke and Jhr. W. C. van Heurn, the first presented to the Museum a fine collection of indigenous birdskins, 93 specimens belonging to 55 species, the second enriched the Museum with a collection of about 460 eggs in clutches of native birds.

Description: Die in dieser Arbeit zusammengestellten und bearbeiteten Opiliones geboren zu einer Sammlung des Rijks Museum van Natuurlijke Historie in Leiden. Sämtliche Arten gehören zur Unterfamilie der Gagrellini THORELL der Familie der Phalangiidae SIMON der Unterordnung der Opiliones Palpatores THOEELL. ES sind folgende Arten, von denen 6 neu sind: Dentobunus bidentatus (THORELL). = Gagrella bidentata, THORELL 1891, Ann. Mus. civ. Genova. XXX. p. 697—699.

Description: Le genre Optis, contrairement aux indications du mémoire sur les Trachypholini (antea p. 121), note p. 157, a été publié par Pascoe, Trans. Ent. Soc. London, 1885, p. XIII; il y a donc lieu de le faire figurer en synonymie de Trachypholis, dans le Catalogue des espèces (p. 165), avec son indication bibliographique. Optis bicarinata Pasc., Trans. Ent. Soc. Lond. 1885, p. XIII (= Labromimus Raffrayi Grouv., Ann. Mus. Civ. Genova, XXXVIII, 1897, p. 380).

Description: Ein während meines Aufenthalts auf Java in der Gefangenschaft gehaltenes Exemplar von Felis minuta Temm. bot mir Gelegenheit, einige Beobachtungen über die Lebensweise dieser Tigerkatzenart anzustellen. Ich erhielt das Tierchen, als es kaum einige Wochen alt war, aus dem Distrikt Krawang, östlich von Batavia. Die Eingeborenen dieser Gegend nennen es „kutjing memeng”, während es in andern Teilen Java’s den Namen „kuwuk” trägt.

Description: Ovatus, convenus, nitidulus, fulvo-testaceus, ad basin prothoracis vix perspicue pubescens. Antennae apud marem incrassatae, articidis 2—8 transversis, apud feminam multo gracilioribus, articulo 2° modice transverso, 3°—8° plus minusve subquadratis vel subelongatis. Caput transversum, disco plus minusve subdepression, dense punctulatum; margine antico ante antennarum bases producto, apud marem inflexo, medio inciso, apud feminam valde inflexo, subsinuato, medio subimpresso. Prothorax transversus, antice angustus, lateribus extra apicem parum arcuatus, subdense punctulatus ; lateribus tenuiter marginatis, substricte explanatis; angulis posticis acutis; basi tenuiter marginata. Elytra ovata, humeris fere prothoracis latera extendentes, lateribus arcuata, vix ampliata, ad apicem attenuata et conjunctim rotundata, circa. 1 et 1/3 tam elongata quam simul in maxima latitudine lata, subdense tenuiterque punctulata. Pedes maris crassiores. — Long. 4,5 — 5,5 mill. Ovale, environ deux fois et un tiers plus long que large dans sa plus grande largeur, couvexe, un peu brillant, à peine visiblement pubescent vers la base du pronotum, fauve testacé. Antennes du mâle légèrement comprimées, épaisses, un peu rembrunies, plus claires sur le premier article et vers l’extrémité; 1er article un peu plus épais que les suivants, un peu moins long que large, 2me très transversal, 3me transversal, 4me, 5me et 6me subégaux, plus courts que le 3me, 7me et 8me subégaux, à peine plus courts que le 3me, 9me à 11me formant une massue peu accentuée, à articles subégaux, environ une fois et demie plus longs que lé 8me, progressivement moins larges et dont le dernier est terminé par une partie subconique; antennes de la femelle plus grêles que celles du mâle: 1er article un peu plus épais que les suivants, à peine plus loug que large, 2me moins d’une fois et demie aussi large que long, 3me nettement plus long que large, 4me très nettement suballongé, 5me à 7me subégaux, suballongés, 8me plus long que les précédents, 9me à 11me formant une massue assez bien marquée, à articles environ de même longueur que le 8me, de même largeur et dont le dernier article est terminé par une partie subconique. Tête transversale, légèrement convexe, infléchie au bord antérieur, couverte d’une ponctuation irrégulièrement serrée; front saillant en avant des naissances des antennes, largement échancré en arc dans le milieu chez le mâle, sinué chez la femelle; yeux très petits; tempes beaucoup plus longues que les yeux. Prothorax un peu plus large en avant que la tête, s’élargissant vers la base, plus de deux fois plus large à la base que long, subtrouqué au sommet et à la base, presque droit sur les côtés sauf en avant; angles antérieurs arrondis, postérieurs droits; ponctuation à peine moins forte et moins serrée que celle de la tête; marges latérales finement rebordées, étroitement et peu régulièrement explanées; base finement rebordée. Écusson subrectangulaire, environ quatre fois plus large que loug. Elytres de la largeur du prothorax à la base, en angle obtus émoussé aux épaules, continuant, sur les côtés, presque la direction des côtés du prothorax, arrondis sur les côtés, à peine élargis, atténués vers l’extrémité, arrondis ensemble au sommet, environ une fois et un tiers plus longs que larges ensemble dans leur plus grande largeur, plus éparsement et plus finement ponctués que le prothorax. Pattes des mâles plus robustes que celles des femelles; les premiers hétéromères, les seconds tétramères.

Description: Two females, collected in 1892 in the Strait of Malacca and presented by Mr. Tydeman to the Zoological Museum of the University of Utrecht, belong to a new species, much resembling Call. gigas Dana in its outer appearance and related also to Call. novae-britanniae Borr. from New Britain, to Call. kraussi Stebb. from the Cape of Good Hope and to Call. mauritiana Miers from Mauritius. Sutures of the carapace deep. Rostrum minute, measuring one-sixth of the length of the eye-stalks, broader at its base than long and rather obtuse; a still smaller, rounded projection between the eye-stalk and the antenual peduncle. Eye-stalks almost as long as basal antennular article, about twice as long as broad at their base, with subacute tips; corneae black, situated in the middle at the outer side. Second antennular article one and a half as long as thick, third article one-fourth longer than the second; flagella of equal length, a little more than one and a half as long as the peduncle. External antennae one and a half as long as the inner and as the carapace, antennal peduncle a little longer than that of the inner antennae. External maxillipeds resembling those of Glypturus Branneri Rathb. (vide: Proc. Wash. Acad. Sc. II, 1900, p. 150, pl. VIII, fig. 7), but the carpus distinctly less wide than the propodus; no spinous crest on the inner face of the ischium, propodus a little wider than long, dactylus slightly compressed.

Description: The genus Notopygos was based by Grube in 1855 ¹) on an Amphinomid worm from St. Helena, N. crinitus, especially characterized by having the anus situated dorsally at some distance from the last segment. Some time afterwards ²) he described another species, N. ornatus, from Puntarenas in Costa Rica and mentioned the presence of two dorsal cirri. Meanwhile (1857) Kinberg ³), probably unacquainted with the last named species, published a new diagnosis of the genus, in which not only the characteristical situation of the anus was not mentioned, but also added to it “cirrus dorsualis pedis unicus”. It may be presumed, that the worms collected by him in the neighbourhood of St. Helena and considered to be young specimens of N. crinitus, belonged to an other genus, because he described the caruncle as “sulco longitudinali” instead of “crista media praeditus”. Moreover lie introduced the new genus Lirione, characterized by having “cirri dorsuales utrinque bini”, in behalf of two undescribed Amphiuomidae, L. splendens from Tahiti and L. maculata from Panama. Kinberg therefore published an erroneous diagnosis of the genus Notopygos and proposed the new name Lirione for two species, undoubtedly belonging to the first named genus, that of Grube. Baird ¹) did not recognize this error, that was corrected by subsequent investigators (Ehlers, Macintosh a.o.). Nowadays about a dozen of species of Notopygos are described, but, as is rightly stated by Potts ²), they are unfortunately rather ill-defined and so it is sometimes a very difficult, if not an impossible task to recognize the species. Potts found that one or more of the anterior segments always possess denticulated setae, even when in an other region of the body they are not present. I for one think however, that the presence or absence of serrations in the setae is not the only character that must be taken into account, as, like in Chloeia, the branchiae do not seem to commence always on the same segment and also the number of the folds of the caruncle and the situation of the anal pore differs in different species, though unfortunately in several cases this is not mentioned by the authors. In the following table the hitherto described species of Notopygos are enumerated, especially in order to demonstrate the numerous gaps in our knowledge of this genus.

Description: The typical habitat of Microglossus aterrimus (Gmelin) is Australia, where the bird is found only in the northern part. Under this name black cockatoos from New Guinea, and by some authors also from the Aroe Islands, Misool, Salawatti and Waigeoe, have been mentioned; Messrs. Rothschild and Hartert, however, separate birds from the last named islands subspecifically from those of New Guinea. Specimens from the Aroe Islands are, as a rule, much smaller than those from New Guinea and the western Papuan Islands, so that it is correct to recognise them as a subspecies, named Microglossus aterrimus alecto (Temminck), or, probably more correctly, M. a. intermedia (Schlegel), as the type-specimen of Ara alecto Temminck is without indication of habitat and as there have been observed also very small specimens in the western Papuan Islands; Schlegel in 1861 mentioned under the name of Cac. intermedia birds from the Aroe Islands. In the Leyden Museum are 10 specimens from the Aroe Islands, measuring: ♂ ♂, wing 310—357 mm., culmen 69—95 mm.; ♀ ♀, wing 318—346 mm., culmen 73—92 mm. Specimens from Waigeoe, Gemieu, Salawatti and Misool are, as a rule, larger than those from the Aroe Islands, measuring: ♂ ♂, wing 342—382 mm., culmen 94 — 112mm.; ♀ ♀, wing 335—370 mm., culmen 74 —87 mm. Specimens from Misool seem to be smaller than those from the three other islands. The Leyden Museum possesses 7 specimens from Waigeoe, 1 from Gemien, 3 from Salawatti and 3 from Misool.

Description: In my paper »Contributions towards the knowledge of the Annelida polychaeta, I: Amphinomidae” 1) I was the first to describe the genus Pherecardia, characterized by having a caruncle, composed of a median heart-shaped axis, that bears on each side several (7) folded lobes of a lamelliform shape and directed backward. A tuft of short cylindrical branchial filaments occurs on each body-ring and the bristles of the ventral fascicles are not bifurcated, but provided with a hooklike bend tip, whereas the dorsal ones are partly capillary, partly stout, with serrations, having the shape of an Y. It was based on a badly preserved specimen, of which the locality was unknown, but in 1902 Collin mentioned it in his »Verzeichniss der von Prof. Semon bei Amboina und Thursday Island gesammelten Polychäten” 2), however without giving any peculiarity about the specimen he examined. A year later 1903, Fischli published an account of the »Polychäten von Ternate”, collected by Kükenthal 1); among them he described and figured a new species, Amphinome sericata. characterized by the presence of a caruncle consisting of a median axis and 8 lateral folded lamellae, whereas the dorsal bristle-fascicle shows the particular harpoon-like setae above referred to. It appears to me to be without doubt, that this worm must be identified with my Pherecardia lobata, and I cannot very well understand how the author could range this annelid in the genus Amphinome, that has a small, faintly developed caruncle and branchiae which only commence on the 3rd or 4th segment.

Description: Herr Dr. J. ELBERT, Leiter der Sunda-Expedition des Frankfurter Vereins für Geographie, hat von Lombok eine Sammlung Fische mitgebracht, wobei sich zwei neue Arten und zwei neue Varietäten befinden. Es sind folgende: Barbus maculatus (Kuhl & v. Hasselt) Cuv. & Val., v. hagenii, var. n. Zu Ehren des Präsidenten des Vereins für Geographie Herrn Hofrat Dr. Hagen benannt.

Description: Only an adult male of this apparently new form of the genus Eudynamis has been collected near Bivak Island, in the Noord River, Southwestern New Guinea, at 9 January 1910 by the members of the last Lorentz-expedition to the snowy mountains. (Coll. Lorentz n\xc2\xb0. 508).\nThe plumage is black, glossed with greenish blue. Iris fire-red; bill dull yellow with blackish base; feet black. The dimensions are very small, smaller than those of any of the described forms of Eudynamis, even inferior to those of Eudynamis orientalis alberti Rothschild & Hartert of the Solomon Islands, which has a length of wing from 180\xe2\x80\x94185 mm. (Nov. Zool. XIV, 1907, p. 440). Our specimen measures: culmen 23, wing 169, tail 164, tarso-met. 30 mm.

Description: In December 1910 the Zoological Garden of Rotterdam obtained, from a dealer, an interesting semi-adult female of a Cercopithecus, said to be imported from the Upper Congo, and belonging to the Mona-group as defined by Mr. R. I. Pocock in Proc. Zool. Soc. 1907, p. 708.\nThis specimen belongs, as far as I am aware, to a hitherto undescribed species, which I propose to name Cercopithecus petronellae.

Description: The typical habitat of Microglossus aterrimus (Gmelin) is Australia, where the bird is found only in the northern part. Under this name black cockatoos from New Guinea, and by some authors also from the Aroe Islands, Misool, Salawatti and Waigeoe, have been mentioned; Messrs. Rothschild and Hartert, however, separate birds from the last named islands subspecifically from those of New Guinea. Specimens from the Aroe Islands are, as a rule, much smaller than those from New Guinea and the western Papuan Islands, so that it is correct to recognise them as a subspecies, named Microglossus aterrimus alecto (Temminck), or, probably more correctly, M. a. intermedia (Schlegel), as the type-specimen of Ara alecto Temminck is without indication of habitat and as there have been observed also very small specimens in the western Papuan Islands; Schlegel in 1861 mentioned under the name of Cac. intermedia birds from the Aroe Islands. In the Leyden Museum are 10 specimens from the Aroe Islands, measuring: \xe2\x99\x82 \xe2\x99\x82, wing 310\xe2\x80\x94357 mm., culmen 69\xe2\x80\x9495 mm.; \xe2\x99\x80 \xe2\x99\x80, wing 318\xe2\x80\x94346 mm., culmen 73\xe2\x80\x9492 mm.\nSpecimens from Waigeoe, Gemieu, Salawatti and Misool are, as a rule, larger than those from the Aroe Islands, measuring: \xe2\x99\x82 \xe2\x99\x82, wing 342\xe2\x80\x94382 mm., culmen 94 \xe2\x80\x94 112mm.; \xe2\x99\x80 \xe2\x99\x80, wing 335\xe2\x80\x94370 mm., culmen 74 \xe2\x80\x9487 mm. Specimens from Misool seem to be smaller than those from the three other islands. The Leyden Museum possesses 7 specimens from Waigeoe, 1 from Gemien, 3 from Salawatti and 3 from Misool.

Description: Ovatus, convenus, nitidulus, fulvo-testaceus, ad basin prothoracis vix perspicue pubescens. Antennae apud marem incrassatae, articidis 2\xe2\x80\x948 transversis, apud feminam multo gracilioribus, articulo 2\xc2\xb0 modice transverso, 3\xc2\xb0\xe2\x80\x948\xc2\xb0 plus minusve subquadratis vel subelongatis. Caput transversum, disco plus minusve subdepression, dense punctulatum; margine antico ante antennarum bases producto, apud marem inflexo, medio inciso, apud feminam valde inflexo, subsinuato, medio subimpresso. Prothorax transversus, antice angustus, lateribus extra apicem parum arcuatus, subdense punctulatus ; lateribus tenuiter marginatis, substricte explanatis; angulis posticis acutis; basi tenuiter marginata. Elytra ovata, humeris fere prothoracis latera extendentes, lateribus arcuata, vix ampliata, ad apicem attenuata et conjunctim rotundata, circa. 1 et 1/3 tam elongata quam simul in maxima latitudine lata, subdense tenuiterque punctulata. Pedes maris crassiores. \xe2\x80\x94 Long. 4,5 \xe2\x80\x94 5,5 mill.\nOvale, environ deux fois et un tiers plus long que large dans sa plus grande largeur, couvexe, un peu brillant, \xc3\xa0 peine visiblement pubescent vers la base du pronotum, fauve testac\xc3\xa9. Antennes du m\xc3\xa2le l\xc3\xa9g\xc3\xa8rement comprim\xc3\xa9es, \xc3\xa9paisses, un peu rembrunies, plus claires sur le premier article et vers l\xe2\x80\x99extr\xc3\xa9mit\xc3\xa9; 1er article un peu plus \xc3\xa9pais que les suivants, un peu moins long que large, 2me tr\xc3\xa8s transversal, 3me transversal, 4me, 5me et 6me sub\xc3\xa9gaux, plus courts que le 3me, 7me et 8me sub\xc3\xa9gaux, \xc3\xa0 peine plus courts que le 3me, 9me \xc3\xa0 11me formant une massue peu accentu\xc3\xa9e, \xc3\xa0 articles sub\xc3\xa9gaux, environ une fois et demie plus longs que l\xc3\xa9 8me, progressivement moins larges et dont le dernier est termin\xc3\xa9 par une partie subconique; antennes de la femelle plus gr\xc3\xaales que celles du m\xc3\xa2le: 1er article un peu plus \xc3\xa9pais que les suivants, \xc3\xa0 peine plus loug que large, 2me moins d\xe2\x80\x99une fois et demie aussi large que long, 3me nettement plus long que large, 4me tr\xc3\xa8s nettement suballong\xc3\xa9, 5me \xc3\xa0 7me sub\xc3\xa9gaux, suballong\xc3\xa9s, 8me plus long que les pr\xc3\xa9c\xc3\xa9dents, 9me \xc3\xa0 11me formant une massue assez bien marqu\xc3\xa9e, \xc3\xa0 articles environ de m\xc3\xaame longueur que le 8me, de m\xc3\xaame largeur et dont le dernier article est termin\xc3\xa9 par une partie subconique. T\xc3\xaate transversale, l\xc3\xa9g\xc3\xa8rement convexe, infl\xc3\xa9chie au bord ant\xc3\xa9rieur, couverte d\xe2\x80\x99une ponctuation irr\xc3\xa9guli\xc3\xa8rement serr\xc3\xa9e; front saillant en avant des naissances des antennes, largement \xc3\xa9chancr\xc3\xa9 en arc dans le milieu chez le m\xc3\xa2le, sinu\xc3\xa9 chez la femelle; yeux tr\xc3\xa8s petits; tempes beaucoup plus longues que les yeux. Prothorax un peu plus large en avant que la t\xc3\xaate, s\xe2\x80\x99\xc3\xa9largissant vers la base, plus de deux fois plus large \xc3\xa0 la base que long, subtrouqu\xc3\xa9 au sommet et \xc3\xa0 la base, presque droit sur les c\xc3\xb4t\xc3\xa9s sauf en avant; angles ant\xc3\xa9rieurs arrondis, post\xc3\xa9rieurs droits; ponctuation \xc3\xa0 peine moins forte et moins serr\xc3\xa9e que celle de la t\xc3\xaate; marges lat\xc3\xa9rales finement rebord\xc3\xa9es, \xc3\xa9troitement et peu r\xc3\xa9guli\xc3\xa8rement explan\xc3\xa9es; base finement rebord\xc3\xa9e. \xc3\x89cusson subrectangulaire, environ quatre fois plus large que loug. Elytres de la largeur du prothorax \xc3\xa0 la base, en angle obtus \xc3\xa9mouss\xc3\xa9 aux \xc3\xa9paules, continuant, sur les c\xc3\xb4t\xc3\xa9s, presque la direction des c\xc3\xb4t\xc3\xa9s du prothorax, arrondis sur les c\xc3\xb4t\xc3\xa9s, \xc3\xa0 peine \xc3\xa9largis, att\xc3\xa9nu\xc3\xa9s vers l\xe2\x80\x99extr\xc3\xa9mit\xc3\xa9, arrondis ensemble au sommet, environ une fois et un tiers plus longs que larges ensemble dans leur plus grande largeur, plus \xc3\xa9parsement et plus finement ponctu\xc3\xa9s que le prothorax. Pattes des m\xc3\xa2les plus robustes que celles des femelles; les premiers h\xc3\xa9t\xc3\xa9rom\xc3\xa8res, les seconds t\xc3\xa9tram\xc3\xa8res.

Description: Ein w\xc3\xa4hrend meines Aufenthalts auf Java in der Gefangenschaft gehaltenes Exemplar von Felis minuta Temm. bot mir Gelegenheit, einige Beobachtungen \xc3\xbcber die Lebensweise dieser Tigerkatzenart anzustellen. \nIch erhielt das Tierchen, als es kaum einige Wochen alt war, aus dem Distrikt Krawang, \xc3\xb6stlich von Batavia. Die Eingeborenen dieser Gegend nennen es \xe2\x80\x9ekutjing memeng\xe2\x80\x9d, w\xc3\xa4hrend es in andern Teilen Java\xe2\x80\x99s den Namen \xe2\x80\x9ekuwuk\xe2\x80\x9d tr\xc3\xa4gt.

Description: Mr. E. Jacobson, of Semarang, Java, has kindly sent to me for determination a small collection of Dermaptera from Java. I am able to recognize twenty-seven species; none of these are actually new, but several are interesting and the female of Tomopyyia abnormis Borm. is described for the first time, this species being hitherto known only from de Bormans\xe2\x80\x99 unique type in the Brunner collection, now in the Hofmuseum, Vienna.

Description: Bei der Erforschung von Niederl\xc3\xa4ndisch-Neu-Guinea, welche in den letzten Jahren so kr\xc3\xa4ftig und erfolgreich in die Hand genommen wurde, haben bekanntlich seit 1907 die durch den General-Gouverneur J. B. VAN HEUTSZ ins Leben gerufenen militairischen Expeditionen, unter Leitung des Hauptmann A. J. GOOSZEN und anderer, eine hervorragende Rolle gespielt \xc2\xb9). Reichlich drei Jahre lang nahm der Bergingenieur O. G. HELDRING an diesen Untersuchungen Teil \xc2\xb2) und die Ergebnisse derselben sind teilweise von ihm ver\xc3\xb6ffentlicht \xc2\xb3). Eine grosse Sammlung von Gesteinen, welche von HELDRING angelegt wurde, harrte indessen noch der Bearbeitung; sie wurde mir vom Niederl\xc3\xa4ndischen Kolonialministerium zur Untersuchung \xc3\xbcbergeben, damit die Resultate bei den weiteren Berichten von HELDRING verwertet werden k\xc3\xb6nnten. Mit R\xc3\xbccksicht hierauf war meine Arbeit an eine kurze Zeit gebunden; sie konnte nur eine Uebersicht \xc3\xbcber das Wesentlichste der Sammlung erzielen.\nDas Gebiet, aus dem das hier bearbeitete Material stammt, ist auf der beigef\xc3\xbcgten Karte, welche Herr HELDRING SO freundlich war, f\xc3\xbcr mich zu entwerfen, n\xc3\xa4her bezeichnet. Sie soll nur zur ganz allgemeinen Orientierung \xc3\xbcber die Fundorte dienen, besonders f\xc3\xbcr denjenigen, welcher der Geographie von Neu-Guinea ferner steht \xc2\xb9). Abgesehen vom Noordrivier und Noordwestrivier handelt es sich dabei um ein geologisch v\xc3\xb6llig unerforschtes Gebiet. Der letztgenannte Fluss ist bekanntlich bei den denkw\xc3\xbcrdigen, von H. A. LORENTZ geleiteten Expeditionen nach Central-Neu-Guinea von J. W. VAN NOUHUYS aufgenommen und in Lorentzrivier umgetauft \xc2\xb2). Dabei sind auch geologische Beobachtungen angestellt und Gesteinssammlungen heimgebracht, deren Bearbeitung indessen meines Wissens noch nicht stattfand. Den vorl\xc3\xa4ufigen Berichten ist folgendes zu entnehmen: Auf dem Wege von Alkmaar zum Wilhelminatop zur Rechten des Noordrivier wurden vor allem Sandsteine wahrgenommen, die teilweise mergelig sind, teilweise in Konglomerat verlaufen; ihnen sind Tongesteine eingelagert. In einem solchen wurden noch in 3760 m H\xc3\xb6he, unfern des Wilhelminatop, marine Mollusken (u.a. Ostrea) gefunden, die VAN NOUHUYS f\xc3\xbcr j\xc3\xbcnger als Kreide h\xc3\xa4lt. Sodann nehmen Kalksteine einen hervorragenden Anteil an dem Aufbau des Gebirges; es wird u. a. Nummulitenkalk aus der Gegend zwischen Alkmaar und dem Hellwiggebergte sowie vom Treubgebergte erw\xc3\xa4hnt, Riffkalk vom Kamm des Hellwiggebergte und ebenfalls vom Treubgebergte, endlich Alveolinenkalk von der Schneegrenze in 4461 m H\xc3\xb6he.

Description: The Leyden Museum received some weeks ago from Mr. Kleiweg de Zwaan a lot of Insects collected by him in the island of Nias. In this collection I found a male and a female of an interesting Longicorn, viz. Nothopeus hemipterus Oliv. (also known from Java, Burma and Northern India) captured on Mount Sitoli, together with both sexes of a fossorial Hymenopteron belonging to the family Pompilidae, viz. Macromeris splendida Lep. Pompilus coriarius Taschb.) which wasp perfectly resembles the beetle, both insects being black with a strong metallic blue hue especially on the wings. Undoubtedly this is a not yet recorded case of protective resemblance between Longicorns and Fossorial Hymenoptera.\nAs yet the following eight species are known in the genus Nothopeus and, certainly, they all will have their model.

Description: In einer fr\xc3\xbcheren, in dieser Zeitschrift ver\xc3\xb6ffentlichten Arbeit konnte ich zum ersten Male das Vorhandensein der Lias-Formation auf Borneo und zwar in der Westerafdeeling nachweisen \xc2\xb9). Es handelte sich damals um den Oberen Lias. Seitdem sind mancherlei reiche und \xc3\xbcberraschende Jurafunde im Australasiatischen Archipel gemacht worden. Auch die Insel Borneo hat inzwischen noch wieder einige Beitr\xc3\xa4ge geliefert. Die weitere Verbreitung der Oberen Lias-Schiefertone in West-Borneo konnte K. MARTIN \xc2\xb2) an neuen Funden nachweisen.\nDas Vorhandensein von Kellaway (Middle Oolite) wurde dann von R. BULLEN NEWTON \xc2\xb3) in Serawak festgestellt, w\xc3\xa4hrend FR. VOGEL 4) neue Fossilien aus dem Oberen Jura der Westerafdeeling von Borneo beschreiben konnte. WING EASTON \xc2\xb9) hat dann schliesslich in seiner grossen zusammenfassenden Arbeit \xc3\xbcber West-Borneo auch das Auftreten des Jura ausf\xc3\xbchrlich er\xc3\xb6rtert.

Description: Bei der Bearbeitung der javanischen Terti\xc3\xa4rversteinerungen, deren Resultate ich in verschiedenen Schriften niedergelegt habe, ergaben sich mancherlei Schwierigkeiten aus dem Umstande, dass ich die Schichten, aus denen die Versteinerungen stammten, nicht aus eigener Anschauung kannte; denn ich hatte Java bislang nur ein einziges Mal bei Gelegenheit einer Reise nach den Molukken fl\xc3\xbcchtig ber\xc3\xbchrt und dort keinerlei Studien anstellen k\xc3\xb6nnen. JUNGHUHN hatte im allgemeinen nur die Fundorte der von ihm gesammelten Objekte angegeben, ohne eine weitere Einteilung der Sedimente vorzunehmen \xc2\xb9); bei der Bearbeitung einer reichen Sammlung von P. VAN DIJK hatte ich sodann den Mangel gen\xc3\xbcgender stratigraphischer Untersuchungen vielfach zu beklagen \xc2\xb2), und sp\xc3\xa4ter stellte sich heraus, dass betreffs der Fossilien der Nanggulanschichten eine Verwechslung von Fundorten stattgefunden haben m\xc3\xbcssee \xc2\xb3). Als ich ferner 1891 mit der Publikation der Versteinerungen begann, welche von VERBEEK und anderen bei Gelegenheit der Aufnahme von Java gesammelt waren, hoffte ich \xe2\x80\x9edie Kenntnis der javanischen Fossilien in Verband mit den Aufnahmen VERBEEKS nun zu einem gewissen Abschluss zu bringen \xc2\xb9)\xe2\x80\x9d; denn ich durfte voraussetzen, dass die Lagerungsverh\xc3\xa4ltnisse hinreichend klargelegt werden w\xc3\xbcrden. Aber ich erfuhr bald darauf bei der Publikation der Untersuchungen von VERBEEK und FENNEMA \xc2\xb2) eine arge Entt\xc3\xa4uschung; denn die Schichten, aus denen die gr\xc3\xb6sste Mehrzahl der Fossilien stammte, liessen sich keineswegs in einen bestimmten stratigraphischen Verband bringen \xc2\xb3). Bei der Aufnahme der Karte von Java im Maasstabe von 1:200000 war \xc3\xbcberhaupt kein Palaeontologe t\xc3\xa4tig und mehrfach sind die Fossilien nur von Laien gesammelt. Im allgemeinen wollte es mir scheinen, als w\xc3\xa4ren die versteinerungsreichen Sedimente von Java, abgesehen von Trinil, noch niemals gr\xc3\xbcndlich ausgebeutet worden.\nSo beschloss ich denn selbst auf Java zu sammeln, um aus den erm\xc3\xbcdenden systematischen Arbeiten \xc3\xbcber terti\xc3\xa4re Versteinerungen, denen ich Decennien gewidmet und zu deren Fortsetzung es manchmal grosser Aufopferung bedurfte, mehr wissenschaftlichen Nutzen als bisher zu ziehen. Wie n\xc3\xb6tig dies war und zu welchen \xc3\xbcberraschenden Resultaten es f\xc3\xbchrte, wird sich aus der Bearbeitung der mitgebrachten Sammlungen ergeben.

Description: Mr. P. Buitendijk, Surgeon of the Steam Navigation Company \xc2\xbb Nederland\xe2\x80\x9d, presented to our collection two Petrels, collected by him during his latest voyage to the Netherlands\xe2\x80\x99 East-India. When lying in the roadstead of Semaraug, nortbcoast of Java, at the 25th December 1910, a specimen of Oceanodroma monorhis (Swinhoe) was caught aboard at night. It is an old male, measuring: wiug 156, tail 84, culmen 14, tarso-met. 26 mm.; it agrees with the description of the type-specimen of Thalassidroma monorhis by Swinhoe in the Ibis of 1867, p. 386 (the toes however are wholly black), and with Keuleman\xe2\x80\x99s fine plate in the Monograph of the Petrels by Du Cane Godman (Part I, 1907, p. 32, pl. 14), which represents this type-specimen. Mr. Buitendijk preserved the bird in formaline and when it was skinned by our taxidermist the nasal opening has not been injured; the nasal septum is very short and does not extend so far forward as the sides of the nasal tube, so that, really, there is a single nasal opening. Our specimen is the first example of the genus Oceanodroma, observed in our East-Indian possessions. From Luzon of the Philippine Islands Oceanodroma has been recorded by McGregor (Man. Philipp. Birds, I, 1909, p. 84), but the specimen could not be determined specifically.\nThe second Petrel is an example of the very rare Aestrelata aterrima (Bonaparte), caught aboard ship at night in the Gulf of Aden at the 11th of January 1911. It seems that only three examples of this species were known in European Musea, one in Leyden and one in Paris, both from the Island of Reunion (the two type-specimens of Pterodroma aterrima Bonaparte, Consp. Av. II, 1855, p. 191), and another one in the University Museum of Cambridge, originally preserved in the St. Denys Museum in Mauritius. Our second example thus is the fourth one known in European collections. It is darker and more blackish than the type-specimen of Bonaparte, and there are some yellowish white feathers on the lores and on the head, which likely are the remains of the juvenile plumage. The feet are not yellow and black as stated by Schlegel, but greyish flesh-colour with black outer toe and black terminal portions of the other toes. The rusty colour of the feet in the figure of the plate in Du Cane Godman\xe2\x80\x99s Monograph of the Petrels (Part III, 1908, p. 179, pl. 47) is not correct. The measurements are: wing 243, tail 122, culmen 30, tarso-met. 35 mm. The bird was skinned by Mr. Buiteudijk, who unfortunately did not determine the sex.

Description: Herr E. Jacobson in Semarang, Java, ist so freundlich gewesen nebst anderem Materiale mir auch einige Nymphen von Perliden zu schicken, die nach der Bildung der Mundteile, Zahl der Punktaugen und relativen L\xc3\xa4nge der Fussglieder in die Gruppe der Neoperla geh\xc3\xb6ren. Ich bin nicht im Staude zu entscheiden ob sie in diese Gattung selbst geh\xc3\xb6ren oder eher zu Javanita Klp. zu stellen sind und noch weniger die Art zu bestimmen. Doch ich halte es nicht f\xc3\xbcr \xc3\xbcberfl\xc3\xbcssig die Nymphen zu beschreiben, da in der letzten Zeit auch die Nymphen h\xc3\xa4ufiger aus den tropischen L\xc3\xa4ndern gebracht werden. Ganz \xc3\xa4hnliche Nymphen habe ich aus dem zentralen Afrika zur Beschreibung erhalten.

Description: Odontomachus haematodes L. \xe2\x99\x80 \xe2\x99\x80 \xe2\x99\x82 \xe2\x80\x94 Semarang (Februar).\nOdontomachus rixosus Smith \xe2\x80\x94 Toentang.

Description: Le genre Optis, contrairement aux indications du m\xc3\xa9moire sur les Trachypholini (antea p. 121), note p. 157, a \xc3\xa9t\xc3\xa9 publi\xc3\xa9 par Pascoe, Trans. Ent. Soc. London, 1885, p. XIII; il y a donc lieu de le faire figurer en synonymie de Trachypholis, dans le Catalogue des esp\xc3\xa8ces (p. 165), avec son indication bibliographique.\nOptis bicarinata Pasc., Trans. Ent. Soc. Lond. 1885, p. XIII (= Labromimus Raffrayi Grouv., Ann. Mus. Civ. Genova, XXXVIII, 1897, p. 380).

Description: Since May of this year the Museum of Natural History at Leyden is carrying into execution the inquiry into migration and other movements of birds in the Netherlands by means of aluminium rings. The results will be published in this periodical and at the same time in Dutch in the periodical of the \xe2\x80\x9eNederlandsche Ornithologische Vereeniging\xe2\x80\x9d. It is not necessary to give here particulars about our method of working or about the rings used, only I will remark that our rings are of ten sizes. The smaller rings are marked MUSEUM the larger ones MUSEUM NAT. HIST., all of course also LEIDEN LEIDEN\xe2\x80\x94HOLLAND numbered. Since May more than 2500 rings have been sent to 40 persons, willing to co-operate at the scheme for marking birds in our country. As far as I can see from the received schedules, filled-in by the markers, 1165 of these rings have been used for the following 31 species: Ciconia ciconia 3, Phalacrocorax carlo 6, Anas boschas 160, Nettion crecca 2, Larus argentatus 84, Larus ridibundus 381, Sterna cantiaca 138, Sterna fluviatilis 170, Sterna minuta 2, Recurvirostra avosetta 14, Haematopus ostralegus 17, Vanellus vanellus 23, Totanus totanus 8, Pavoncella pugnax 19, Athene noctua 1, Alauda arvensis 3, Sturnus vulgaris 26, Turdus musicus 17, Phoenicurus titys 9, A\xc3\xabdon luscinia 3, Accentor modularis 3, Muscicapa grisola 1, Phylloscopus collybita 1, Parus major 10, Parus coeruleas 2, Anorlliura troglodytes 4, Hirundo rustica 20, Delichon urbica 2, Fringilla coelebs 9, Chloris chloris 6, Passer montana 1, Passer domestica 18 and Emberiza citrinella 2.\nOf these 1165 ringed birds, up to the beginning of November, 22 have been recovered, viz.: Anas boschas, all marked at Ellemeet, on Schouwen, province Zeeland, by Mr. A. Man in \xe2\x80\x99t Veld.

Description: The increase of the collection of indigenous birds of the Leyden Museum during the last twelve months was an important one. Not less than 787 skins and more than 800 eggs in clutches have been added to the collection. Among the skins there are again some very interesting species such as: Megalestris skua, Cepphus grylle, Casarca casarca, Picus martius, all rare birds in our country.\nI have the pleasure to mention the following gentlemen, who presented our collection with more or less interesting examples: F. E. Blaauw, J. Boonstra, C. de Bruyn, A. Burdet, C. F. H. Dumont, R. van Eecke, Jhr. W. C. van Heurn, C. J. van der Klaauw, A. Kohlbeck, P. de Koning, E. Loeb, Mr. H. A. Lorentz, M. van Mens, H. M. Rose, Jhr. F. de Roy van Zuidewijn, B. Scheelings, Dr. H. E. Th. van Sillevoldt, Ch. van Spall, G. S. van der Spruyt, the late C. N. Tieleman, F. A. Verster van Wulverhorst, F. H. Verster and J. C. W\xc3\xa4kerlin; more special thanks are due to Messrs. R. van Eecke and Jhr. W. C. van Heurn, the first presented to the Museum a fine collection of indigenous birdskins, 93 specimens belonging to 55 species, the second enriched the Museum with a collection of about 460 eggs in clutches of native birds.

Description: During a night in August 1910 Mr. P. Buitendijk catched on the road of Panaroekan, with the pelagic net, a curious Heteronereis-specimen, differing from the species usually met with by the shape of its cephalic lobe, but agreeing in many regards with a similar form from the Gulf of California, collected in 1900 by Diguet and afterwards described by Gravier \xc2\xb9). Our worm (a \xe2\x99\x82) is rather small, measuring only 13 mm. in length, whereas the largest of the California-specimens reaches 23 mm.; the number of its segments amounts to 95. The body shows dorsally on each side a double row of black spots, consisting of a narrow transverse one at the base of each foot and another round patch on the middle of it; veutrally also there occurs a dark spot at the base of each foot. On the other hand the California-species is characterized by a dark transverse band about across the middle of the dorsum of each segment.\nThe prostomium (figs. 1 and 2) is broadly rounded anteriorly, somewhat resembling the bill of a duck, with a longitudinal ridge along its middle. The two pairs of eyes are highly enlarged, close to each other. However only the posterior pair, globular in shape, is situated dorsally, with the lens directed upwards; the anterior pair, elliptical in shape, is for the greater part situated ventrally, having its lens directed downwards. As suggested by Gravier, these pelagic worms probably are swimming as easily on their back as on their belly.

Description: During the past summer I visited the Leyden Museum for the purpose of examining the types of certain crinoid species which are preserved in that institution. Most of these species were originally described by Dr. P. Herbert Carpenter in 1881 (Notes from the Leyden Museum, vol. 3, pp. 171\xe2\x80\x94217), but a few were instituted forty years previously by Professor Johannes M\xc3\xbcller (Monatsber. d. k. preuss. Akad. d. Wiss., Berlin, 1841, pp. 179\xe2\x80\x94189).\nAs was to have been expected the discovery of many new forms and the greater knowledge thereby gained of the specific interrelationships within the group had made it necessary to review the material studied by M\xc3\xbcller and Carpenter in order to determine more exactly, in the light of recently acquired information, just what they had at hand.

Description: Les esp\xc3\xa8ces de D\xc3\xa9capodes dont on trouvera ici la description font partie de deux collections diff\xc3\xa9rentes. L\xe2\x80\x99une, qui provient des \xc3\xaeles Arou et Kei, fut form\xc3\xa9e par mou ami le Dr. H. MERTON et moi-m\xc3\xaame lors d\xe2\x80\x99un voyage scientifique que nous f\xc3\xaemes dans ces archipels en 1908.\nL\xe2\x80\x99autre provient de la Nouvelle Guin\xc3\xa9e o\xc3\xb9 plusieurs exp\xc3\xa9ditions hollandaises r\xc3\xa9colt\xc3\xa8rent des mat\xc3\xa9riaux carcinologiques d\xe2\x80\x99eau douce. Ces exp\xc3\xa9ditions sont celle de 1903 dans le nord de la partie hollandaise de la Nouvelle Guin\xc3\xa9e, sous la direction du Prof. A. WICHMANN, qui \xc3\xa9tait accompagn\xc3\xa9 par les zoologistes MM. les Drs. L. F. DE BEAUFORT et H. A. LORENTZ. Ensuite les exp\xc3\xa9ditions de 1907 et 1909 dans la partie m\xc3\xa9ridionale de la Nouvelle Guin\xc3\xa9e n\xc3\xa9erlandaise, sous la direction de M. H. A. LORENTZ. Cette exp\xc3\xa9dition a mont\xc3\xa9 la rivi\xc3\xa8re nomm\xc3\xa9e \xe2\x80\x9eNoord,\xe2\x80\x9d nom qu\xe2\x80\x99on a chang\xc3\xa9 derni\xc3\xa8rement en celui de \xe2\x80\x9eLorentz\xe2\x80\x9d.

Description: Two of the species of Helota of the Dresden Museum kindly forwarded to me for identification by Prof. Heller, were sent over from the island of Formosa by Mr. H. Sauter. One of these species, H. thoracica Rits., originally described from Thibet 1), is represented by a single female specimen, captured at Fuhosho. The other, represented by a \xe2\x99\x82 from Hoozan and a \xe2\x99\x80 from Taihorinsho, is new to science. It is, according to my \xe2\x80\x9eSynopsis\xe2\x80\x9d, allied to my H. rotundata from Burma 2), though differing in several important points: more elongate shape, quite differently shaped anterior tibiae and apical ventral segment in the \xe2\x99\x82, more narrowly pointed apices of the elytra in the \xe2\x99\x80, etc.\nI propose to name this new species, in honour of the learned Entomologist of the Dresden Museum Prof. K. M. Heller

Description: In January 1911 Mr. E. Jacobson spent some weeks at Nongkodjadjar on Mount Tengger, East Java, at an elevation of about 1200 m. above sea-level. Here he brought together a small collection of birdskins, 24 specimens belonging to 18 species, which he kindly presented to our Museum. The collection contains one form, a Crocopsis, that seems to be an undescribed subspecies.\nIn the following lines an enumeration of the species is to be found; where necessary, I have referred to my list of the birds, collected by Mr. Jacobson is West Java, published in this periodical, vol. XXXII, 1910, pp. 105\xe2\x80\x94166.

Description: The new birds, of which the descriptions follow here, have been collected by Mr. F. K. Baron van Dedem, who, in company with his wife, made a trip through our East-Indian possessions. They have been collected on the Volcano Sibajak in the Batak Mountains near Lake Toba in Northern Sumatra, in East Java, in Ceram and in the Poeloe Toedjoe, a group of islands north of Ceram.\nI have to tender my thanks to Dr. Hartert in Tring, for his help in comparing some of the specimens in the Tring and London Museums, as for some of the forms I had no material for comparison.

Description: Length from the frontborder of the antennary tubers to the apex of the sutural spine at the end of the elytra 32,5 mm.; length of the elytra 24,5 mm., breadth of the elytra at the shoulders 11,5 mm.\nOf a rather broad form in this genus, the elytra being almost parallelsided and at the apices but slightly convex.

Description: The type-specimen (an adult male with skeleton), collected by Beccari on one of the islands of the Arou-Archipelago and described by Peters and Doria in 1875 (Ann. Mus. Civ. Gen. VII) and at the same time the only known individual, has been a puzzle to all students of the Phalanger-group. It therefore is of the highest interest that I found in the Lorentz-collection the three above mentioned specimens, prima facie distinct from all hitherto seen individuals of the orientalis-group, but at the same time exactly agreeing with gymnotis Peters et Doria. During the past summer I could study the type in the Genoa Museum, by the loudness of the Director Marquis G. Doria, so that I am absolutely sure of the identification. It hardly can be supposed that specimens of this species once have been brought over from New-Guinea to the Arou-islands, so that the living of this species both in New-Guinea and on the Arou-islands, is another proof for their land-connection in times past. However, notwithstanding there seems to be no doubt about the original locality \xe2\x80\x94 the Arou-islands \xe2\x80\x94 it is a very remarkable fact, that nobody since 1875 saw another specimen from the named islands, the more strange as before Beccari our traveller Baron von Rosenberg collected specimens, now in the Leyden Museum, of Phalanger maculatus as well as of Phalanger orientalis on these islands, and Wallace too procured from there specimens, now in the British Museum, belonging to these two species.\nThis may be as it is, it remains however a fact that Peters described the species in such clear terms, that merely lack of material may be an excuse why later authors failed to accept it as a species distinct from Phalanger orientalis. Indeed, extremely striking is the kind of fur and its colour as well as the naked tail, only adorned with a rather small ring of fur round its base; moreover the skull, concave like in orientalis, presents a dentition quite distinct from that of the latter species, especially by the very stout posterior premolar (p4) in the upper- as well as in the lower jaw, placed by far not so correctly in the molar-row as is the case in all other Phalangerspecies.

Description: In the library of the Royal Zoological Society \xc2\xbbNatura Artis Magistra\xe2\x80\x9d at Amsterdam, there is a copy of the descriptive catalogue of the collection of birds etc. made by Mr. A. Vroeg and sold at the Hague in the year 1764. This is one of the rarest prints, besides this only one copy, preserved in the library of the Linnean Society of London, is known. The attention of Zoologists to this Catalogue has been drawn by Mr. C. D. Sherborn, when writing his Index Animalium, and the new names in the catalogue were attributed by Mr. Sherborn in his Index to A. Vroeg; but afterwards he was informed by Dr. C. W. Richmond, that P. S. Pallas was the author of the new names in the \xc2\xbbadumbratiunculae\xe2\x80\x9d at the end of the catalogue (cf. Smithsonian Misc. Coll. XLVII, 1905, p. 332).\nI had the opportunity, by kind permission of Dr. C. Kerbert, Director of the Zoological Society of Amsterdam, to examine the copy in possession of that Society, for which I tender my sincere thanks to that gentleman.

Description: In my paper \xc2\xbbContributions towards the knowledge of the Annelida polychaeta, I: Amphinomidae\xe2\x80\x9d 1) I was the first to describe the genus Pherecardia, characterized by having a caruncle, composed of a median heart-shaped axis, that bears on each side several (7) folded lobes of a lamelliform shape and directed backward. A tuft of short cylindrical branchial filaments occurs on each body-ring and the bristles of the ventral fascicles are not bifurcated, but provided with a hooklike bend tip, whereas the dorsal ones are partly capillary, partly stout, with serrations, having the shape of an Y. It was based on a badly preserved specimen, of which the locality was unknown, but in 1902 Collin mentioned it in his \xc2\xbbVerzeichniss der von Prof. Semon bei Amboina und Thursday Island gesammelten Polych\xc3\xa4ten\xe2\x80\x9d 2), however without giving any peculiarity about the specimen he examined.\nA year later 1903, Fischli published an account of the \xc2\xbbPolych\xc3\xa4ten von Ternate\xe2\x80\x9d, collected by K\xc3\xbckenthal 1); among them he described and figured a new species, Amphinome sericata. characterized by the presence of a caruncle consisting of a median axis and 8 lateral folded lamellae, whereas the dorsal bristle-fascicle shows the particular harpoon-like setae above referred to. It appears to me to be without doubt, that this worm must be identified with my Pherecardia lobata, and I cannot very well understand how the author could range this annelid in the genus Amphinome, that has a small, faintly developed caruncle and branchiae which only commence on the 3rd or 4th segment.

Description: The genus Notopygos was based by Grube in 1855 \xc2\xb9) on an Amphinomid worm from St. Helena, N. crinitus, especially characterized by having the anus situated dorsally at some distance from the last segment. Some time afterwards \xc2\xb2) he described another species, N. ornatus, from Puntarenas in Costa Rica and mentioned the presence of two dorsal cirri. Meanwhile (1857) Kinberg \xc2\xb3), probably unacquainted with the last named species, published a new diagnosis of the genus, in which not only the characteristical situation of the anus was not mentioned, but also added to it \xe2\x80\x9ccirrus dorsualis pedis unicus\xe2\x80\x9d. It may be presumed, that the worms collected by him in the neighbourhood of St. Helena and considered to be young specimens of N. crinitus, belonged to an other genus, because he described the caruncle as \xe2\x80\x9csulco longitudinali\xe2\x80\x9d instead of \xe2\x80\x9ccrista media praeditus\xe2\x80\x9d. Moreover lie introduced the new genus Lirione, characterized by having \xe2\x80\x9ccirri dorsuales utrinque bini\xe2\x80\x9d, in behalf of two undescribed Amphiuomidae, L. splendens from Tahiti and L. maculata from Panama. Kinberg therefore published an erroneous diagnosis of the genus Notopygos and proposed the new name Lirione for two species, undoubtedly belonging to the first named genus, that of Grube. Baird \xc2\xb9) did not recognize this error, that was corrected by subsequent investigators (Ehlers, Macintosh a.o.). Nowadays about a dozen of species of Notopygos are described, but, as is rightly stated by Potts \xc2\xb2), they are unfortunately rather ill-defined and so it is sometimes a very difficult, if not an impossible task to recognize the species. Potts found that one or more of the anterior segments always possess denticulated setae, even when in an other region of the body they are not present. I for one think however, that the presence or absence of serrations in the setae is not the only character that must be taken into account, as, like in Chloeia, the branchiae do not seem to commence always on the same segment and also the number of the folds of the caruncle and the situation of the anal pore differs in different species, though unfortunately in several cases this is not mentioned by the authors. In the following table the hitherto described species of Notopygos are enumerated, especially in order to demonstrate the numerous gaps in our knowledge of this genus.

Description: Herr Dr. J. ELBERT, Leiter der Sunda-Expedition des Frankfurter Vereins f\xc3\xbcr Geographie, hat von Lombok eine Sammlung Fische mitgebracht, wobei sich zwei neue Arten und zwei neue Variet\xc3\xa4ten befinden. Es sind folgende: Barbus maculatus (Kuhl & v. Hasselt) Cuv. & Val., v. hagenii, var. n.\nZu Ehren des Pr\xc3\xa4sidenten des Vereins f\xc3\xbcr Geographie Herrn Hofrat Dr. Hagen benannt.

Description: Oblongus, modice convexus, nitidulus, niger, rufo fulvoque variegatus. Antennae extra primum et secundum articulum infuscatae. Caput transversum, fronte convexiusculum, antice subtruncatum, pube flavo-cinerea, tenui, subdense vestitum; labro magno, antice truncato, utrinque rotundato. Prothorax infuscatus, ad angulos anticos et in disci medio rufescens, transversissimus, angulis anticis subrotundatus, lateribus arcuatus, antice angustus, basi medio subarcuatus, utrinque oblique subtruncatus et tenuiter marginatus, dense punctulatus, pube brevi, grisea, subdense vestitus, antice et ad latera pilis plus minusve elongatis instructus. Elytra humeris breviter rotundata, parallela, apice conjunctim subrotundata, paulo magis 1 et \xc2\xbd tam elongata quam simul lata, substriata, basi marginata, pube pruinosa, flava vestita, pilis paulo longioribus praecipue ad latera et ad apicem intermixtis, nigrobrunnea; singulo flavo-ferrugineo quadrinotato: 1a et 2a macula circiter ad primum longitudinis trientem, 3a transversa, arcuata ultra medium, 4a laterali, stricta, paulo ante apicem, extremitatibus valde lobato-producta. \xe2\x80\x94 Long. 3,7 mill.\nOblong, environ deux fois et demie plus long que large, mod\xc3\xa9r\xc3\xa9ment convexe, peu brillant, brun noir\xc3\xa2tre, tach\xc3\xa9 de testac\xc3\xa9 ferrugineux. Antennes enfum\xc3\xa9es, premier et deuxi\xc3\xa8me article testac\xc3\xa9s. T\xc3\xaate un peu plus large que longue en tenant compte des mandibules, l\xc3\xa9g\xc3\xa8rement convexe sur le front, tr\xc3\xa8s dens\xc3\xa9ment poiutill\xc3\xa9e, plut\xc3\xb4t noire, couverte d\xe2\x80\x99une pubescence flave cendr\xc3\xa9e, fine, presque dense ; bord ant\xc3\xa9rieur subtronqu\xc3\xa9, arrondi de chaque c\xc3\xb4t\xc3\xa9; labre subrectangulaire, plus de deux fois plus large que long; yeux mod\xc3\xa9r\xc3\xa9ment saillants, \xc3\xa0 petites facettes. Prothorax un peu plus de deux fois et demie plus large dans sa plus grande largeur que long, noir brun\xc3\xa2tre, marqu\xc3\xa9 d\xe2\x80\x99une tache rouge\xc3\xa2tre vers les angles ant\xc3\xa9rieurs et sur le disque d\xe2\x80\x99une bande longitudinale, mal d\xc3\xa9finie, de m\xc3\xaame couleur; bord ant\xc3\xa9rieur tr\xc3\xa8s faiblement arqu\xc3\xa9, \xc3\xa0 peine subsinu\xc3\xa9 vers les extr\xc3\xa9mit\xc3\xa9s, bord\xc3\xa9 de chaque c\xc3\xb4t\xc3\xa9 par une impression sulciforme, s\xe2\x80\x99\xc3\xa9cartant progressivement et tr\xc3\xa8s faiblement, garni d\xe2\x80\x99une frange de poils cendr\xc3\xa9s tr\xc3\xa8s peu marqu\xc3\xa9e; angles ant\xc3\xa9rieurs obtus, lorsque l\xe2\x80\x99insecte est vu de dessus; bords lat\xc3\xa9raux arqu\xc3\xa9s, divergents vers l\xe2\x80\x99arri\xc3\xa8re, finement rebord\xc3\xa9s \xc3\xa0 la base ; base faiblement arrondie au milieu, plus fortement aux extr\xc3\xa9mit\xc3\xa9s, finement rebord\xc3\xa9e; angles post\xc3\xa9rieurs obtus, \xc3\xa9mouss\xc3\xa9s; ponctuation tr\xc3\xa8s fine et tr\xc3\xa8s dense; pubescence courte, serr\xc3\xa9e, cendr\xc3\xa9e, entrem\xc3\xaal\xc3\xa9e sur le bord ant\xc3\xa9rieur et sur les bords lat\xc3\xa9raux de poils plus ou moins longs, dress\xc3\xa9s. Ecusson noir\xc3\xa2tre. Elytres arrondis aux \xc3\xa9paules, subparall\xc3\xa8les, \xc3\xa9troitement arrondis ensemble au sommet, un peu plus d\xe2\x80\x99une fois et demie plus longs que larges ensemble, faiblement stri\xc3\xa9s, dens\xc3\xa9ment pointill\xc3\xa9s, couverts d\xe2\x80\x99une pubescence pruineuse, flave, subdor\xc3\xa9e, entrem\xc3\xaal\xc3\xa9e de poils inclin\xc3\xa9s peu allong\xc3\xa9s, gris-flaves ; chacun d\xe2\x80\x99eux marqu\xc3\xa9 de quatre taches testac\xc3\xa9es-orang\xc3\xa9es : les deux premi\xc3\xa8res petites, un peu allong\xc3\xa9es, sur une ligne un peu inclin\xc3\xa9e par rapport \xc3\xa0 la base, vers le premier tiers de la longueur, la troisi\xc3\xa8me un peu au del\xc3\xa0 du milieu, transversale, arqu\xc3\xa9e surtout au c\xc3\xb4t\xc3\xa9 interne, s\xe2\x80\x99\xc3\xa9tendant entre la 2me strie disco\xc3\xafdale et la 6me ; la quatri\xc3\xa8me lat\xc3\xa9rale, assez \xc3\xa9troite, s\xe2\x80\x99\xc3\xa9tendant presqu\xe2\x80\x99au niveau de la 3me, n\xe2\x80\x99atteignant pas le sommet, prolong\xc3\xa9e en arri\xc3\xa8re en un lobe transversal, dilat\xc3\xa9 \xc3\xa0 l\xe2\x80\x99extr\xc3\xa9mit\xc3\xa9, atteignant le disque de l\xe2\x80\x99\xc3\xa9lytre, en avant en un lobe un peu \xc3\xa9largi, s\xe2\x80\x99\xc3\xa9tendant parall\xc3\xa8lement \xc3\xa0 la suture; base des \xc3\xa9lytres bord\xc3\xa9e par un faible bourrelet. Dessous noir\xc3\xa2tre, couvert d\xe2\x80\x99une pubescence grise, couch\xc3\xa9e, assez longue et assez dense. Labre du m\xc3\xa2le environ deux fois plus large que long; mandibules largement anguleuses \xc3\xa0 la base.

Description: Le genre Chorites a \xc3\xa9t\xc3\xa9 \xc3\xa9tabli par Pascoe, en 1862, Journ. of Ent. I, p. 114, pour un Colydien de Born\xc3\xa9o, C. aspis, dont l\xe2\x80\x99aspect lui semblait exceptionnel. En 1866, Journ. of Ent. II, p. 139, le m\xc3\xaame auteur ajouta deux esp\xc3\xa8ces nouvelles \xc3\xa0 ce genre : C. lotus Singapore, C. oblongus Macassar et, pr\xc3\xa9cisant alors plus compl\xc3\xa8tement ses affinit\xc3\xa9s, p. 123, le pla\xc3\xa7a, avec les Trachypholis d\xe2\x80\x99Erichson, dans la tribu des Bothriderinae. Les deux genres se s\xc3\xa9paraient par la forme de la saillie interf\xc3\xa9morale du 1er segment de l\xe2\x80\x99abdomen, large, triangulaire chez les Trachypholis, tronqu\xc3\xa9e chez les Chorites. Par la suite, de nouvelles d\xc3\xa9couvertes vinrent augmenter la courte liste de Pascoe et alors l\xe2\x80\x99aspect des premiers Chorites perdit son caract\xc3\xa8re sp\xc3\xa9cial, en se fondant au milieu de formes vari\xc3\xa9es, s\xe2\x80\x99encha\xc3\xaenant les unes dans les autres, tant au point de vue de la vestiture du t\xc3\xa9gument que des profils horizontaux et verticaux.\nEn r\xc3\xa9alit\xc3\xa9 il semble bien difficile de pr\xc3\xa9ciser les limites o\xc3\xb9 les Trachypholis finissent et o\xc3\xb9 les Chorites commencent; chez ces insectes la forme de la saillie interf\xc3\xa9morale du premier segment de l\xe2\x80\x99abdomen n\xe2\x80\x99a pas, contrairement \xc3\xa0 l\xe2\x80\x99opinion de Pascoe, de sp\xc3\xa9cialisations suffisantes pour d\xc3\xa9finir des genres diff\xc3\xa9rents et malgr\xc3\xa9 une \xc3\xa9tude tr\xc3\xa8s attentive, il ne m\xe2\x80\x99a pas \xc3\xa9t\xc3\xa9 possible de constater un seul caract\xc3\xa8re diff\xc3\xa9rentiel de structure r\xc3\xa9ellement important.

Description: In addition to my description of Palaemon (Eupalaemon) Lenzii de Man (see p. 225 of this volume) I give here a key to the species of the subgenus Eupalaemon Ortm. as yet known to occur in the rivers of West-Africa. Six species are at present known from there, viz.: 1. Pal. (Eupalaemon) macrobrachion Herklots 1851.\nGeneral distribution: The rivers from Sierra Leone to Benguella [Sierra Leone (v. Martens); Liberia (de Man); near Boutry (Herklots); river Prah, South of Ashantee (de Man); Cameroon (Aurivillius); Congo coast, probably from Ambriz (de Man); from fresh water at Catumbella near Benguella (de Man)].

Description: Die in dieser Arbeit zusammengestellten und bearbeiteten Opiliones geboren zu einer Sammlung des Rijks Museum van Natuurlijke Historie in Leiden. S\xc3\xa4mtliche Arten geh\xc3\xb6ren zur Unterfamilie der Gagrellini THORELL der Familie der Phalangiidae SIMON der Unterordnung der Opiliones Palpatores THOEELL. ES sind folgende Arten, von denen 6 neu sind: Dentobunus bidentatus (THORELL). = Gagrella bidentata, THORELL 1891, Ann. Mus. civ. Genova. XXX. p. 697\xe2\x80\x94699.

Description: Two females, collected in 1892 in the Strait of Malacca and presented by Mr. Tydeman to the Zoological Museum of the University of Utrecht, belong to a new species, much resembling Call. gigas Dana in its outer appearance and related also to Call. novae-britanniae Borr. from New Britain, to Call. kraussi Stebb. from the Cape of Good Hope and to Call. mauritiana Miers from Mauritius.\nSutures of the carapace deep. Rostrum minute, measuring one-sixth of the length of the eye-stalks, broader at its base than long and rather obtuse; a still smaller, rounded projection between the eye-stalk and the antenual peduncle. Eye-stalks almost as long as basal antennular article, about twice as long as broad at their base, with subacute tips; corneae black, situated in the middle at the outer side. Second antennular article one and a half as long as thick, third article one-fourth longer than the second; flagella of equal length, a little more than one and a half as long as the peduncle. External antennae one and a half as long as the inner and as the carapace, antennal peduncle a little longer than that of the inner antennae. External maxillipeds resembling those of Glypturus Branneri Rathb. (vide: Proc. Wash. Acad. Sc. II, 1900, p. 150, pl. VIII, fig. 7), but the carpus distinctly less wide than the propodus; no spinous crest on the inner face of the ischium, propodus a little wider than long, dactylus slightly compressed.

Description: I may be allowed to furnish a few additional remarks concerning the above named list, which Dr. van Oort was so kind to prepare on a number of Javanese birds collected under my personal supervision for account of the Leyden Museum.\nThe birds were for the greater part shot and the skins prepared by half-caste and native hunters, who also supplied mo with the native names.