1000 resultados para Muséum national d’histoire naturelle (France)
Resumo:
A new genus, Cradoscrupocellaria n. gen., is erected for Scrupocellaria bertholletii Audouin, 1826), reported as widespread in tropical and subtropical waters. Here we select a neotype of this species in order to establish its identity and distinguish it from morphologically similar species. We include redescriptions and figures of additional species now assigned to this new genus: Cradoscrupocellaria curacaoensis (Fransen, 1986) n. comb., Cradoscrupocellaria hirsuta (Jullien & Calvet, 1903) n. comb., and Cradoscrupocellaria macrorhyncha (Gautier, 1962) n. comb. Five additional species are assigned to the genus: Cradoscrupocellaria ellisi (Vieira & Spencer Jones, 2012) n. comb., Cradoscrupocellaria nanshaensis (Liu, 1991) n. comb., Cradoscrupocellaria reptans (Linnaeus, 1758) n. comb., Cradoscrupocellaria serrata (Waters, 1909) n. comb., and Cradoscrupocellaria tenuirostris (Osburn, 1950) n. comb. Eighteen new species are described: Cradoscrupocellaria aegyptiana n. sp., Cradoscrupocellaria arisaigensis n. sp., Cradoscrupocellaria atlantica n. sp., Cradoscrupocellaria calypso n. sp., Cradoscrupocellaria floridana n. sp., Cradoscrupocellaria galapagensis n. sp., Cradoscrupocellaria gautieri n. sp., Cradoscrupocellaria gorgonensis n. sp., Cradoscrupocellaria hastingsae n. sp., Cradoscrupocellaria insularis n. sp., Cradoscrupocellaria jamaicensis n. sp., Cradoscrupocellaria lagaaiji n. sp., Cradoscrupocellaria macrorhynchoides n. sp., Cradoscrupocellaria makua n. sp., Cradoscrupocellaria marcusorum n. sp., Cradoscrupocellaria normani n. sp., Cradoscrupocellaria odonoghuei n. sp., and Cradoscrupocellaria osburni n. sp.
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Réalisé en cotutelle avec le Département de Préhistoire du Muséum national d’Histoire naturelle (Paris, France), École doctorale « Sciences de la nature et de l’Homme » (ED 227)
Resumo:
Abundant material of turtles from the early Oligocene site of Boutersem-TGV (Boutersem, Belgium), is presented here. No information on the turtles found there was so far available. All the turtle specimens presented here are attributable to a single freshwater taxon that is identified as a member of Geoemydidae, Cuvierichelys. It is the first representative of the ‘Palaeochelys s. l.–Mauremys’ group recognized in the Belgian Paleogene record. This material, which allows to know all the elements of both the carapace and the plastron of the taxon, cannot be attributed to the only species of the genus Cuvierichelys so far identified in the Oligocene, the Spanish form Cuvierichelys iberica. The taxon from Boutersem is recognized as Cuvierichelys parisiensis. Thus, both the paleobiogeographic and the biostratigraphic distributions of Cuvierichelys parisiensis are extended, its presence being confirmed for the first time outside the French Eocene record. The validity of some European forms is refuted, and several characters previously proposed as different between Cuvierichelys iberica and Cuvierichelys parisiensis are recognized as subjected to intraspecific variability.
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Fossil associations from the middle and upper Eocene (Bartonian and Priabonian) sedimentary succession of the Pamplona Basin are described. This succession was accumulated in the western part of the South Pyrenean peripheral foreland basin and extends from deep-marine turbiditic (Ezkaba Sandstone Formation) to deltaic (Pamplona Marl, Ardanatz Sandstone and Ilundain Marl formations) and marginal marine deposits (Gendulain Formation). The micropalaeontological content is high. It is dominated by foraminifera, and common ostracods and other microfossils are also present. The fossil ichnoasssemblages include at least 23 ichnogenera and 28 ichnospecies indicative of Nereites, Cruziana, Glossifungites and ?Scoyenia-Mermia ichnofacies. Body macrofossils of 78 taxa corresponding to macroforaminifera, sponges, corals, bryozoans, brachiopods, annelids, molluscs, arthropods, echinoderms and vertebrates have been identified. Both the number of ichnotaxa and of species (e. g. bryozoans, molluscs and condrichthyans) may be considerably higher. Body fossil assemblages are comparable to those from the Eocene of the Nord Pyrenean area (Basque Coast), and also to those from the Eocene of the west-central and eastern part of South Pyrenean area (Aragon and Catalonia). At the European scale, the molluscs assemblages seem endemic from the Pyrenean area, although several Tethyan (Italy and Alps) and Northern elements (Paris basin and Normandy) have been recorded. Palaeontological data of studied sedimentary units fit well with the shallowing process that throughout the middle and late Eocene occurs in the area, according to the sedimentological and stratigraphical data.
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The Early Miocene Napak XV locality (ca 20.5 Ma), Uganda, has yielded an interesting assemblage of fossils, including the very well represented amphicyonid Hecubides euryodon. The remarkable find of a nearly complete mandible, unfortunately with poorly preserved dentition, together with new dental remains allow us to obtain a better idea about the morphology and variability of this species. Additionally, we describe a newly discovered mandible of Hecubides euryodon from the Grillental-VI locality (Sperrgebiet, Namibia), which is the most complete and diagnostic Amphicyonidae material found in this area. Comparisons with Cynelos lemanensis from Saint Gérand le Pouy (France), the type locality, and with an updated sample of the species of amphicyonids described in Africa leads us to validate the genus Hecubides. Hecubides would be phylogenetically related to the medium and large size species of Amphicyonidae from Africa, most of them now grouped into the genera Afrocyon and Myacyon, both endemic to this continent.
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O Projecto Flora de Cabo Verde é uma iniciativa conjunta do Instituto de Investigação Científica Tropical (IICT) e do Instituto Nacional de Investigação e Desenvolvimento Agrário (INIDA) de Cabo Verde, iniciado em 1990. O objectivo do projecto é a publicação, em português e em forma de Flora, de fascículos contendo, cada um, o estudo de uma família de plantas vasculares ocorrendo no Arquipélago de Cabo Verde, tanto as nativas, em que se incluem as endémicas, como as exóticas naturalizadas. A obra é dirigida por uma Comissão Editorial constituída por dois elementos do IICT, dois do INIDA e um do Instituto Botânico de Coimbra. O estudo das diversas famílias é feito de acordo com o sistema de classificação de Cronquist, de utilização comum na região oeste-africana. O tratamento taxonómico é o mais uniforme possível. Todos os taxa são introduzidos em chaves dicotómicas para permitir uma rápida distinção com recurso a características facilmente observáveis e descritos morfologicamente. Para cada espécie ou taxon infra-específico é citada a bibliografia respectiva respeitante à área geográfica, assim como as sinonímias igualmente respeitantes à área. É referida a sua distribuição em Cabo Verde com uma ou duas citações de materiais por ilha e a distribuição mundial. São ainda feitas referências à ecologia, utilizações e nomes vulgares nas diversas ilhas. A obra é iconografada com estampas relativas a todos os géneros com espécies nativas ou naturalizadas. A base do estudo é constituída pelos materiais depositados nos diversos herbários que reconhecidamente possuem plantas colectadas na região, com particular ênfase nos Herbários do Instituto de Investigação Científica Tropical (LISC), do Instituto Nacional de Investigação e Desenvolvimento Agrário, de Cabo Verde (CECV), do Instituto Botânico da Universidade de Coimbra (COI), do Instituto Botânico da Universidade de Lisboa (LISU), do Muséum National d’Histoire Naturelle, de Paris (P) e do Botanical Garden and Museum, de Oslo (O). Quando finalizada, a Flora de Cabo Verde irá abranger mais de 700 taxa pertencentes a diversas famílias de Pteridófitos, a 97 famílias de Dicotiledóneas e a 18 famílias de Monocotiledóneas. Até à data foram publicadas 88 famílias, incluindo 232 géneros e 417 taxa. Este projecto, ao ter por finalidade o conhecimento da diversidade vegetal nas ilhas do Arquipélago, constituirá um suporte básico para outros tipos de estudos como sejam a caracterização da vegetação, a avaliação de impactos ambientais, o planeamento de políticas ambientais e agrárias ou conservação da biodiversidade.
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In the Indo-pacific region, a study on Stomatopodes revealed two new species: Squilla carinata and Gonodactilus tweediei. Here the author gives a brief description.
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Mr. G. Ranson found a small collection of plankton in Nha Trang (Vietnam), during a mission in the Far East. The samples were harvested in the Bay of Cauda at a water depth of 15-20 m. The author examined a number of samples kept in formalin, extremely rich in diatoms and in good condition. The group of pelagic copepods has been the most carefully studied.
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The author presents his systematic study on a collection of 58 coral tubes containing samples of Chétognathes.
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The author presents his study on marine pelagic fishes collected on the coast of Annam, in the Bay of Cauda, where the Indochina government built the Institute of Oceanography. These samples allowed the systematic identification of pelagic Copepods.
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In 1953, the author received a collection of clans Siphonophores collected in Nha Trang Bay by the Director of the Maritime Station of Cauda, Nha Trang (Annam), Vietnam. This paper gives the results of his studies.
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This first note deals with Diogenes of Group II (cf. Forest, 1952, p. 11). This group contains a number of highly variable species which are, in some cases, poorly characterized due to the vagueness of the original descriptions. Diogenes from Nhatrang belong to four different species but only one of them was identified with a species already described: Diogenes avarus Heller. The other three described and figured in this paper, are probably Diogenes Goniochirus, and D. leptocerus, D. serenei sp. nov.
Resumo:
The author had the opportunity to study a large collection of plankton tubes or pelagic marine copepods, collected in the Nha Trang region (Vietnam-South). Many of these individuals belong to the group Monstrillides.
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The author gives a detailed diagnosis and complete iconography of three females of Mazellina bulbifera nov. spec.