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  • Articles  (183,933)
  • 2010-2014
  • 1980-1984  (183,933)
  • 1965-1969
  • 1981  (183,933)
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  • 2010-2014
  • 1980-1984  (183,933)
  • 1965-1969
Year
Journal
Topic
  • 1
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    West African Brachyuran Crabs (Crustacea: Decapoda) (1981)
    In:  Smithsonian contributions to zoology vol. 306, pp. 1-379
    Details
    Publication Date: 2024-02-01
    Description: The West African marine brachyuran crab fauna, comprising 218 named species in 120 genera and 26 familes, is surveyed. Sixteen new genera and 24 new species are recognized. Synonymies are updated for the tropical species, and all 300 + Eastern Atlantic species are listed. Original references and synonymies are provided for all 146 Eastern Atlantic genera. Synonymies have been compiled for all 36 currently recognized families of marine crabs. Twenty-nine families are represented in the Eastern Atlantic fauna. One family, Hexapodidae Miers, 1886, and one subfamily, Camptandriinae Stimpson, 1858 (Ocypodidae) are revised at the generic level. The genera Liocarcinus Stimpson, 1871 (Portunidae), Machaerus Leach, 1818 (Goneplacidae), and Lambdophallus Alcock, 1900, Paeduma Rathbun, 1897, Parahexapus Balss, 1922, Pseudohexapus Monod, 1956, and Thaumastoplax Miers, 1881 (all Hexapodidae), are defined and recognized. It is suggested that the family Geryonidae Colosi, 1923, shows closest affinities with the family Portunidae Rafinesque, 1815.
    Keywords: Crustacea ; Decapoda ; West Arica
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 2
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    Taxonomy and geography of Rousettus amplexicaudatus (Geoffroy, 1810) with comparative notes on sympatric congeners (Mammalia, Megachiroptera) (1981)
    In:  Beaufortia vol. 31 no. 1, pp. 1-29
    Details
    Publication Date: 2024-01-12
    Description: Rousettus amplexicaudatus (Geoffroy, 1810) is divided into three subspecies according to size: R. a. amplexicaudatus, R. a. infumatus (Gray, 1870), and R. a. brachyotis (Dobson, 1877). Cynonycteris minor Dobsou, 1873 is synonymized with R. a. infumatus; Rousettus stresemanni Stein, 1933 with R. a. amplexicaudatus; and Rousettus amplexicaudatus hedigeri Pohle, 1952 with R. a. brachyotis. Geography and dimensional variations of the recognized subspecies are discussed. R. amplexicaudatus is recorded for the first time from Celebes, Kisar, Mentawai, Muna and Ndao. The subspecific status of specimens from Celebes, Muna, Peleng and Talisai is left undecided.\nOther Rousettus species are discussed in so far as they are known to be sympatric with certain R. amplexicaudatus populations: R. leschenaultii (Desmarest, 1820) \xe2\x80\x94 recorded for the first time from Bali and Simeulu\xc3\xab \xe2\x80\x94, R. celebensis Andersen, 1907, and R. spinalatus Bergmans & Hill, 1980 \xe2\x80\x94 of which a fourth specimen, from a new locality on Borneo, is described.\nSome dental anomalies and some ectoparasities are listed.
    Repository Name: National Museum of Natural History, Netherlands
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  • 3
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    A review of the genus Schistura in Pakistan with description of new species and sucspecies (Pisces, Cobitidae, Noemacheilinae) (1981)
    In:  Bijdragen tot de dierkunde vol. 51 no. 1, pp. 105-130
    Details
    Publication Date: 2024-01-12
    Description: The genus Schistura in Pakistan is reviewed: 20 species (of which 8 are new) and 1 subspecies (new) arranged in 3 species groups are recognized.
    Repository Name: National Museum of Natural History, Netherlands
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  • 4
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    Population dynamics of three gammarid species (Crustacea, Amphipoda) in a French chalk stream. Part II. Standing crop (1981)
    In:  Bijdragen tot de dierkunde vol. 51 no. 1, pp. 31-69
    Details
    Publication Date: 2024-01-12
    Description: The standing crop of Gammarus pulex pulex (Linnaeus, 1758), G. fossarum Koch in Panzer, 1836 and Echinogammarus berilloni (Catta, 1878) has been studied in a small French chalk stream, the Slack. A brief description of all amphipod species encountered in this river is given, with a key to different life stages.\nPeaks in abundance could not be explained by population explosions. In spring regions and headwaters population density was highest. The gammarids showed a rather constant zonation in the Slack: G. p. pulex in the unstable spring region; G. fossarum in the upper and middle reaches, confined to the less polluted parts of the latter; and E. berilloni in the middle and lower region of the Slack, where fluctuations in water temperatures increased.\nLife histories of all three species revealed great inter- and intraspecific differences. Data on size, growth rate, sexual activity, population structure, sex ratio, fecundity and parasitation yielded ample illustrations of these dissimilarities. Laboratory experiments on egg incubation time and reproduction success demonstrated that temperature affects the three species differently.\nBoth seasonal variation and between-year differences in life processes were investigated. The impact of temperature was manifestly important in this aspect too.
    Repository Name: National Museum of Natural History, Netherlands
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  • 5
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    Three dwarf lycophytes from the Carboniferous of Argentina*) (1981)
    In:  Scripta Geologica vol. 64, pp. 1-35
    Details
    Publication Date: 2024-01-12
    Description: Impressions of the bark of two small lycophytes, Bumbudendron paganzianum gen. et sp. nov. and Bumbudendron nitidum sp. nov., are described from middle Carboniferous shales in the Sierra de Paganzo. Lepidodendroid leaf cushions with a well-developed leaf scar showing a single trace, and the presence of a fertile branch structure, invite comparison with Bodeodendron/Sporangiostrobus of the contemporaneous equatorial belt. The presence of an infrafoliar bladder provides the main distinguishing character. Small stem impressions with a thick cuticle are recorded of the simple lycophyte Malanzania nana gen. et sp. nov. which has false leaf scars corresponding to spiny excrescences. These remains have been found in the middle Carboniferous of Malanz\xc3\xa1n in the Sierra de los Llanos. They are comparable to Palaeostigma of Brazil and South Africa. The cuticle shows approximately isodiametric cells flanking the holes corresponding to false leaf scars, and more elongate cells in a fan-shaped disposition occupying the wide areas separating these scars. The rather poor record of Pennsylvanian lycophytes in western South America is analysed, the result being that there may be two additional elements, viz. \'Lepidodendropsis\' peruviana (Gothan) Jongmans and \'Cyclostigma\' pacifica (Steinmann) Jongmans. The generic names of these taxa have been misapplied and a revision of these two species is recommended.
    Repository Name: National Museum of Natural History, Netherlands
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  • 6
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    Late Miocene Mollusca from Tapian Langsat and Gunung Batuta, Sungai Bungalun area, Kalimantan (E. Borneo) (1981)
    In:  Scripta Geologica vol. 59, pp. 13-28
    Details
    Publication Date: 2024-01-12
    Description: Two rather small mollusc faunas, collected nearly seventy years ago by L. M. R. Rutten, have been examined. Though fairly close together and presumably not much different in age (Preangerian: Tf3), they show no relationship to one another. Tapian Langsat: this locality yielded 11 species all of which occur in Preangerian deposits, particularly in the basal Menkrawit and Gelingseh Beds of the Sangkulirang/Mangkalihat area much farther to the North, there being but a solitary species in common with the classical Javanese Preangerian. Gunung Batuta: consisting of 13 species, this assemblage has, like the corals from the same locality but unlike Tapian Langsat, a number of species (in this case 8) in common with the classical Preangerian, while the relationships with the fauna of the Gelingseh and basal Menkrawit Beds are less noticeable. In both cases the relationships with a number of other Preangerian faunas from East Borneo are weak to non-existent, stressing the individual nature of the various sedimentary basins of East Borneo. Generally similar features in this respect have been emphasized by H. Gerth and J. H. F. Umbgrove concerning the corals, ties with distant assemblages often being much stronger than with nearby faunas.
    Repository Name: National Museum of Natural History, Netherlands
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  • 7
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    The genus Rubus (Rosaceae) in Malesia. 1. Subgenera Chamaebatus and Idaeobatus (1981)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 27 no. 1, pp. 75-113
    Details
    Publication Date: 2024-01-12
    Description: In subgenus Chamaebatus two Malesian species are recognized, in subgenus Idaeobatus 18. Synonymy, descriptions, and habitat notes are given, sometimes extending to, but not complete for, extra-Malesian parts of the species areas. No new names or combinations are published. Keys are given to the species.
    Repository Name: National Museum of Natural History, Netherlands
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  • 8
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    A new Fagraea (Loganiaceae) from Celebes, Indonesia (1981)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 27 no. 1, pp. 209-210
    Details
    Publication Date: 2024-01-12
    Description: Frutex scandens, 3 m altus. Folia petiolata; petiolus 1.5 \xe2\x80\x94 2.25 cm longus, gracilis, exauriculatus; squama axillae pro majore parte libera, bilobata ad rotundata, usque ad 3.5 mm alta; lamina 13.5 \xe2\x80\x94 22 cm longa, 4 \xe2\x80\x94 6.5 cm lata, oblonga vel lanceolata, coriacea; basis anguste cuneata; margo integer; apex gradatim acuminatus, acumine longo gracili acuto; costa subtus rotundata; nervi secundarii utrimque circa 6, minute sulcati, subinspectabilis. Inflorescentiae terminales, triflorae, praeterea ramos basales trivel unifloros in axile foliorum summorum suffulta; pedunculi robusti 2 (\xe2\x80\x94 15) mm longi, pedicelli robusti circa 1 cm longi, verrucosi, ebracteolati. Calyx campanulatus 6 \xe2\x80\x94 7 mm altus, lobis semiconnatis, rotundatis, marginatis. Corolla membranacea, tubo gracili 6 \xe2\x80\x94 7 cm longo, lobis patentibus 1.5 cm longis. Stamina tubo corollae circa 4 mm exserta, antheris 3.5 mm longis. Stylus tubo corollae usque ad 10 mm exsertus, stigma peltata 2 mm diam.\nTypus: M. M. J. van Balgooy 3247, Indonesia, Central Celebes, Mt. Roroka Timbu, West slope, c. 1 S, 120\xc2\xb0 E, 9-5-1979, fl. (L).
    Repository Name: National Museum of Natural History, Netherlands
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  • 9
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    Phoma Piskorzii (Petrak) comb. nov., the anamorph of Leptosphaeria acuta (Fuckel) P. Karst (1981)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 11 no. 3, pp. 311-315
    Details
    Publication Date: 2024-01-12
    Description: The pycnidial state of Leptosphaeria acuta appeared to be identical with the lectotype of Diploplenodomus piskorzii, and belongs to Phoma sect. Plenodomus. The binomials Phoma acuta, Leptophoma acuta and Plenodomus acuta are misapplied ambiguous names often referring to the anamorph of Leptosphaeria doliolum sensu stricto.
    Repository Name: National Museum of Natural History, Netherlands
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  • 10
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    Het Schellings havikskruid (Hieracium peleterianum M\xc3\xa9rat) (1981)
    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 10 no. 7, pp. 120-129
    Details
    Publication Date: 2024-01-12
    Description: Hieracium peleterianum M\xc3\xa9rat subsp. peleterianum is reported from the West-Frisian Island of Terschelling. The plants were found in 12 different localities in the eastern part of the island. The plants studied turned out to be diploid (2n=l\xc3\x9f), sexual and selfincompatible. The presence of hybrids (2n=27) between H. pilosella L.(2n=36) and H. peleterianum M\xc3\xa9rat (2n=l\xc3\x9f) could be demonstrated near Formerum. The hybrid (H. X longisquamum Peter) is completely sterile but spreads vegetatively. The same hybrid can be produced artificially. In most artificial hybrids the diploid H. peleterianum was the pollen-parent, the reciprocal cross did not usually result in the formation of hybrids. The pentaploid form of H. pilosella (which reproduces agamospermously) failed to produce hybrids with H. peleterianum when the latter was used as egg-cell plant. The subspecies peleterianum is usually confined to coastal areas. The Dutch plants agree completely with Danish plants from Jylland and Sjaelland and with Norwegian plants from Oslo, but they differ from French, Swiss and Italian plants of Hieracium peleterianum M\xc3\xa9rat subsp. ligericum Zahn in Engler and subsp. subpeleterianum Naegeli et Peter. Cytological examination of all plants collected outside the Netherlands (34 plants from 11 populations) confirmed the diploid chromosome number. The population from Terschelling forms a logical link between the distribution areas north and south of the Netherlands. In the author\xe2\x80\x99s opinion H. peleterianum should be regarded as native not as adventitious.
    Repository Name: National Museum of Natural History, Netherlands
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