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  • 1
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    In:  Zoologische Verhandelingen vol. 323 no. 12, pp. 149-154
    Publikationsdatum: 2024-02-22
    Beschreibung: Eudendrium vervoorti spec. nov. is described from the coast of Zeeland, the Netherlands. A key to Dutch species of Eudendrium is included.
    Schlagwort(e): Cnidaria ; Hydrozoa ; Eudendrium ; taxonomy ; The Netherlands ; new species.
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Publikationsdatum: 2024-01-12
    Beschreibung: Trogloianiropsis lloberai n. gen., n. sp. is described from the flooded coastal karst of the Balearic Islands. It superficially resembles Ianiropsis Sars, 1897 and Janaira Moreira & Pires, 1977, but differs from both in some remarkable characters. It seems to be restricted to the deeper layers of anchihaline cave lakes, and shows a troglobitized morphology (i.e.: absence of eyes and body pigmentation, and extraordinary elongation of antennae). Since its phyletic affinities are not clear, its biogeographic significance and possible derivation from deep-sea or shallow-water ancestors cannot be established.
    Schlagwort(e): Asellota ; Janiridae ; Trogloianiropsis ; anchihaline waters ; Balearic Islands ; taxonomy ; new genus ; new species
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    In:  Contributions to Zoology vol. 66 no. 1, pp. 3-41
    Publikationsdatum: 2024-01-12
    Beschreibung: Phylogenetic hypotheses are designed and tested (usually in implicit form) on the basis of a set of presumptions, that is, of statements describing a certain order of things in nature. These statements are to be accepted as such, no matter whatever evidence for them exists, but only in the absence of reasonably sound evidence pleading against them. A set of the most current phylogenetic presumptions is discussed, and a factual example of a practical realization of the approach is presented.\nA comparison is made of the three main taxonomic approaches hitherto developed, viz., phenetics, cladistics, and phylistics (= evolutionary systematics). The latter term denotes an approach that tries explicitly to represent the basic features of traditional taxonomy and particularly its use of evidence derived from both a similarity and the relatedness of the taxa involved. The phylistic approach has certain advantages in the answering of the basic aims of taxonomy.\nTaxonomic nomenclature is found to rely ultimately on a few basic principles. Nine of these principles are formulated explicitly: six of them are taxonomically independent, and three are taxonomically dependent, that is, they are only compatible with particular taxonomic concepts. Judging from current taxonomic practice, a taxon is neither a class nor an individual, but a continuum (a notion combining some features of both the class and the individual) of subtaxa that is delimited by a gap separating it from other such continua. The type concept is found to be the best available tool to operate within the concept of the taxon-continuum.
    Schlagwort(e): Phylogeny ; taxonomy ; phenetics ; cladistics ; phylistics ; principles of nomenclature ; type concept ; paleoentomology ; Xyelidae (Vespida)
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Publikationsdatum: 2024-01-12
    Beschreibung: The species of Orientopsaltria with unicolorous opercula and three related species of Platylomia are transferred to the genus Dundubia and allocated in the \xe2\x80\x98Dundubia jacoona assemblage\xe2\x80\x99 pending further investigation. The assemblage comprises eleven species in total; all are found in the Indo-Malaysian Archipelago, Indo-China, and the adjoining parts of China and India. The four species which were until now placed in Orientopsaltria are D. feae (Distant, 1892), D. jacoona (Distant, 1888), D. nigripes (Moulton, 1923), and D. oopaga (Distant, 1881). The three species transferred from Platylomia are D. hainanensis (Distant, 1901), D. nagarasingna Distant, 1881, and D. spiculata Noualhier, 1896. These seven species are all redescribed. Four species are described as new: D. myitkyinensis, D. ayutthaya, D. laterocurvata, and D. sinbyudaw. Seven species are synonymized: O. andersoni (Distant, 1883) with D. oopaga, D. bifasciata Liu, 1940 with O. hastata D. hainanensis, (Moulton, 1923) and D. siamensis Haupt, 1918 with D. spiculata, O. fratercula (Distant, 1912) and D. helena Distant, 1912 with D. nagarasingna, and D. longina Distant, 1917 with D. feae. Lectotypes are designated for the following species: Cosmopsaltria andersoni, C.feae, C. fratercula, C. hastata, C. nagarasingna, C. nigripes, C. oopaga, D. helena, D. longina, and D. spiculata. A key to the males is presented and the distributions of the species are discussed. The relationships of the D. jacoona assemblage with Dundubia, Platylomia, and the remaining species of Orientopsaltria are discussed. The species of the D. jacoona assemblage most likely do not form a monophyletic group on their own but rather with Dundubia s. str.
    Schlagwort(e): Cicadidae ; Dundubia ; Jacoona assemblage ; taxonomy ; new species ; phylogeny
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Publikationsdatum: 2024-01-12
    Beschreibung: Allozyme variation in 31 to 50 presumptive loci of 12 populations of European midwife toads of the genus Alytes show appreciable genetic divergences (DiNe from 0.29 to 0.72) among four groups. These groups correspond to A. cisternasii Bosc\xc3\xa1, 1879, A. obstetricans (Laurenti, 1768), A. muletensis (Sanchiz & Adrover, 1979), and a new species from the Betic mountains described here as A. dickhilleni n. sp. Smaller divergences among geographic groups of populations of A. obstetricans (up to DNei = 0.17) support the existence of three geographic units in Europe corresponding to the previously recognized subspecies A. o. obstetricans and A. o. boscai Lataste, 1879, plus a third one described here under the designation of A. o. almogavarii n. ssp. The analysis of morphological variation among taxa using principal component and discriminant analysis shows a remarkable similarity between A. dickhilleni and A. obstetricans; these are cryptic species. A phylogenetic analysis of allozyme data using A. cisternasii as the outgroup supports a sister taxon relationship between A. muletensis and A. dickhilleni, with A. obstetricans the sister taxon to this clade. The historical biogeography of the genus is discussed.
    Schlagwort(e): Allozymes ; Alytes ; midwife toads ; morphometry ; Spain ; taxonomy
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Publikationsdatum: 2024-01-12
    Beschreibung: The following three species are redescribed: Sminthurus viridis (Linnaeus, 1758), Sminthurus nigromaculatus Tullberg, 1871, and Sminthurus multipunctatus Sch\xc3\xa4ffer, 1896. Four new species are described from France and Spain: Sminthurus bourgeoisi n. sp., Sminthurus bozoulensis n. sp., Sminthurus leucomelanus n.sp.,and Sminthurus hispanicus n. sp. The importance of the ontogeny of chaetotaxy is stressed. Indeed, not all species acquire the secondary chaetotaxy in the same instar, and for these characters the most informative instar is not the adult but the third juvenile instar. The study of such characters involves the clustering of similar characters. A short discussion is given about this issue (selection of characters and clustering criteria).
    Schlagwort(e): Collembola ; Symphypleona ; Sminthurus ; chaetotaxy ; new species ; taxonomy ; ontogeny ; France ; Spain
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Publikationsdatum: 2024-01-12
    Beschreibung: Asellus aquaticus is present in 19 of about 100 Turkish groundwater stations prospected during biospeleological explorations. All specimens of these stygophilic populations remain oculate, even though their integumental pigmentation is more or less reduced.\nProasellus lykaonicus Argano & Pesce, 1978 has been found again in a second cave, nearby the type locality. A large and endemic, stygobiont species, Proasellus pisidicus n. sp., from phreatic groundwater, Vil\xc3\xa2yet Burdur, and the minute Proasellus pamphylicus n. sp. from interstitial waters of the eastern part of Vil\xc3\xa2yet Antalya are described.\nThe stygobiont proasellids of Asia Minor, P. lykaonicus and P. pisidicus n. sp. belong to the same phylogenetic strain of Proasellus as those of Transcaucasia, Lebanon, and the Balkan Peninsula.\nSome Janiroidea of the genus Microparasellus are recorded from three inland groundwater localities. Finally, Jaera aff. massiliensis apparently enters fresh waters in a littoral psammic locality.
    Schlagwort(e): Isopoda ; Asellus ; Proasellus n. sp. ; Jaera ; Microparasellus sp. ; groundwaters ; taxonomy ; Turkey
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
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    In:  Contributions to Zoology vol. 65 no. 4, pp. 245-269
    Publikationsdatum: 2024-01-12
    Beschreibung: Four new species of Melitidae (Amphipoda) are described from anchihaline limestone caves in New Caledonia. Three species are classified with Josephosella Ruffo, 1985 (J. microps n. sp., J. debilis n. sp., and J. proiecta n. sp.) and a new genus, Caledopisa, is erected for the fourth species, C. levis n. sp. The new genus is related to Victoriopisa Karaman & Barnard, 1979.
    Schlagwort(e): Cave amphipods ; Melitidae ; New Caledonia ; Josephosella ; Caledopisa ; taxonomy
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
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    In:  Contributions to Zoology vol. 65 no. 3, pp. 189-200
    Publikationsdatum: 2024-01-12
    Beschreibung: A new species of Gammarella Bate, 1857 is described from shallow water, inhabiting the interstitial system in soft bottoms of the Chafarinas Archipelago (western Mediterranean, N. Africa). The relationships of Gammarella with the genera Nuuanu and Cottesloe are briefly discussed. Numerical taxonomie methods are utilized to differentiate between the morphologically related species and the intermediate species. In a table the principal differentiating characters of Gammarella species are presented. Gammarella garciai n. sp. is characterized by its intermediate position between Gammarella, Nuuanu and Cottesloe, showing an intergradation of characters. Gammarella garciai n. sp. and G. merringannee show ecologically intermediate characters between the larger species, probably nestling, with preference for lightless environments, and the smaller species. The group of smaller species, with eyes poorly developed or absent, show interstitial preferences. A map of the world distribution and a key to the 11 known Gammarella species are presented.
    Schlagwort(e): Chafarinas Archipelago ; western Mediterranean ; marine Amphipoda ; taxonomy ; Gammarella ; new species
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
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  • 10
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    In:  Contributions to Zoology vol. 66 no. 4, pp. 263-268
    Publikationsdatum: 2024-01-12
    Beschreibung: Three competing phylogenetic hypotheses for the genus Alytes (midwife toads) are evaluated. Based on quantitative coding of protein characters the most parsimonious solution shows a sister taxon relationship for Alytes dickhilleni and A. muletensis. The alternatives in which A. obstetricans has its sister group in either A. dickhilleni or A. muletensis lack support. Using calibrations derived from protein evolutionary rates, the vicariant events giving rise to A. obstetricans and the lineage leading to the A. muletensis and A. dickhilleni clade and the subsequent splitting between A. muletensis and A. dickhilleni cannot be placed much earlier than the Miocene-Pliocene boundary. Biogeographical scenarios invoking an earlier time of divergence should be rejected.
    Schlagwort(e): Allozymes ; Alytes ; biogeography ; midwife toads ; phylogenetics ; Spain ; taxonomy ; vicariance
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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