Search publications of the members of the Royal Belgian institute of natural Sciences
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A second remarkable slug and a thin-shelled Trochonanina snail from the Udzungwa Mountains, Tanzania (Stylommatophora: Helicarionoidea: Urocyclidae)
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Activiteitenverslag 2011 van het Leopold III-Fonds voor Natuuronderzoek en Natuurbehoud / Rapport d’activités 2011 du Fonds Léopold III pour l’Exploration et la Conservation de la Nature
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The genus Pradoxa Fernandes & Rolán, 1993 (Gastropoda: Muricidae) in SãoTomé, Príncipe and Annobón.
- The genus Pradoxa is revised and all the species are described, compared and illustrated. Two new species are described from São Tomé, Pradoxa gorii spec. nov. and P. urdambideli spec. nov. The radula is illustrated for P. confirmata (Fernandes & Rolán, 1990), P. thomensis (Fernandes & Rolán, 1990) and P. gorii spec. nov. The subfamilial classification is discussed and a comparative table is added in the appendix.
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Description of Muricopsis (Muricopsis) gorii (Gastropoda: Muricidae: Muricopsinae) from southern São Tomé.
- A new species of Muricopsis is described from Sete Pedras Island, São Tomé. It is compared with Muricopsis matildeae Rolán & Fernandes, 1991.
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Description of a new Murexsul (Gastropoda: Muricidae: Muricopsinae) from the Sultanate of Oman.
- A new species, Murexsul khareefae, is described from the southern province of Dhofar, Oman. Key words: Sultanate of Oman, Indian Ocean, Gulf of Oman, Muricidae, Murexsul, new species.
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Description of a new species of Siratus (Gastropoda: Muricidae) from Guadeloupe, Lesser Antilles.
- Siratus michelae is described from six specimens dredged in about 70 m depth off Martinique, French Antilles. It is compared with S. cailleti (Petit, 1856) and S. kugleri (Clench & Pérez Farfante, 1945), both also occurring in the same area, but at greater depth.
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New species of Muricidae (Gastropoda) and additional or noteworthy records from the western Pacific.
- Fourteen species of Muricidae referable to the (sub)genera Promurex Ponder & Vokes, 1988, Pygmaepterys Vokes, 1978, Murexsul Iredale, 1915, Pazinotus Vokes, 1970, Prototyphis Ponder, 1972, Ponderia Houart, 1986, Gemixystus Iredale, 1929, Leptotrophon Houart, 1995 and Scabrotrophon McLean, 1996 are reported from New Caledonia, the Solomon Islands and Taiwan, to depths down to 1750 m. Five new species are described: Favartia (Pygmaepterys) lifouensis n. sp. from New Caledonia with range extension to the Solomon Islands, Pazinotus chionodes n. sp. and Gemixystus calcareus n. sp. from New Caledonia, Leptotrophon wareni n. sp. from the Solomon Islands and Favartia (Pygmaepterys) circinata n. sp. from Taiwan.
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Ocenebra, Pteropurpura, and Ocinebrellus (Gastropoda: Muricidae: Ocenebrinae) in the northwestern Pacific.
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Rapid divergence in morphology, physiology and behaviour among island populations of lizards.
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Cenozoic evolution of Muricidae (Mollusca, Neogastropoda) in the Southern Ocean, with the description of a new subfamily
- Gastropods are among the most studied group in Antarctica, and taxa with an advanced status of systematic knowledge can be used as a model to study how oceanographic and climatic patterns shaped Recent faunal assemblages. Within the ongoing study of the muricid phylogeny, we have analysed molecular and morphological data from species traditionally ascribed to the muricid subfamily Trophoninae. Particularly, the availability of specimens collected in the Southern Ocean and surrounding basins allowed to demonstrate as the genera Pagodula, Xymenopsis, Xymene and Trophonella, which are traditionally classified in the Trophoninae, actually belong to a distinct lineage, for which the new subfamily Pagodulinae is herein introduced. We propose and discuss a possible framework for the origin and radiation of Antarctic muricids.
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Algal Taxonomy: a Road to Nowhere? Journal of Phycology
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The Recent Typhinae (Gastropoda: Muricidae) of New Zealand.
- The Recent Typhinae from the New Zealand region are reviewed. Four species are recognized: Monstrotyphis pauperis (Mestayer, 1916), M. montfortii (A. Adams, 1863), M. tangaroa n. sp. and Siphonochelus solus Vella, 1961. A possible fifth species, known from a single, subadult specimen, remains unidentified.
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The Timbellus richeri complex (Gastropoda: Muricidae) in the southwest Pacific
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A molecular phylogenetic framework for the Ergalataxinae (Neogastropoda: Muricidae)
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Description of Two New Species of Trophoninae s.l. and Typhinae (Gastropoda: Muricidae) from New Caledonia and Comments on Litozamia Iredale, 1929 and Siphonochelus Jousseaume, 1880
- Abstract: Litozamia acares n. sp. and Siphonochelus (Trubatsa) wolffi n. sp. are described from New Caledonia. The radula and the operculum of Litozamia acares are illustrated and described. The classification of Litozamia in Trophoninae is maintained awaiting molecular data to either confirm or modify this decision. Litozamia longior (Verco, 1909) is reinstated as a valid species. The use of the subgenus Choreotyphis Iredale, 1936 is reinstated in Siphonochelus for a single species from eastern Australia, based on differences in shell morphology
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Description of a new species of Lataxiena (Gastropoda: Muricidae) from India
- A new species of the genus Lataxiena is described from Madras, India, with range extension to Thailand, strait of Malacca.
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The status of the northeastern Atlantic and Mediterranean small mussel drills of the Ocinebrina aciculata complex (Mollusca: Gastropoda: Muricidae) with the description of a new species
- The northeastern Atlantic and Mediterranean small mussel drills of the Ocinebrina aciculata complex are here revised and consist of at least 3 species. The type species, Ocinebrina aciculata (Lamarck, 1822), characterized by a slender shell with rounded whorls and primary and secondary spiral cords of approximately similar size, lives throughout the northeastern Atlantic and Mediterranean Sea at depths usually ranging between 0 and 105 m. Its synonymy is here stabilized by a neotype selection for Murex corallinus Scacchi, 1836. Ocinebrina corallinoides Pallary, 1912 (=Ocinebrina buzzurroi Cecalupo and Mariani, 2008, new synonymy), characterized by a strongly elongate and weakly convex shell and primary and secondary spiral cords of approximately similar size, is endemic to the Gulf of Gabès and is here considered a distinct species, pending genetic studies. Ocinebrina reinai n. sp. is here described from the central Mediterranean Sea (where it is sympatric with O. aciculata) on the basis of morphological diagnostic features of shell (rarest presence of labral tooth, commoner presence of infrasutural apertural denticle, dark spots on the ribs and spiral sculpture with differently sized primary and secondary cords and smaller threads) and radula, confirmed by genetic data. Divergence in COI sequences with sympatric samples of O. aciculata (>7%), confirm their status as a distinct species. A comparative table reporting diagnostic features of the congeneric species of the complex and those with which the new species was previously misidentified is offered.
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Population genetic differentiation in Melarhaphe neritoides, a marine gastropod with a long-lived planktonic larval stage.
- Marine invertebrates with planktonic-dispersing larvae are assumed to be good dispersers over long distances. This high dispersal capacity implies a high gene flow between populations and a homogeneous population genetic structuring over wide geographic scales. The marine gastropod Melarhaphe neritoides has a long-lived planktonic larval dispersal stage and allozyme data suggest that it is genetically homogeneous over its whole European distribution area. In contrast, preliminary mtDNA sequence data uncovered a remarkable degree of genetic diversity and genetic structuring on smaller geographic scales. In order to explore this mtDNA diversity and structuring in M. neritoides we started to survey sequence variation at COI and 16S rDNA all over the Azores archipelago. These data reveal that the Azorean populations share very few haplotypes, both between and within islands. Hence, it seems that M. neritoides with its long-lived planktonic larval stage nevertheless shows a strong local population genetic structuring and thus challenges the current paradigm that correlates modes of larval development with levels of genetic structuring. It also stresses the importance of the sampling intensity (both in terms of numbers of specimens and genetic markers) to avoid experimental biases when assessing genetic diversity.
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Walvissen uit het Waasland
- Wanneer begin 2012 een stuk grond in het Waasland wordt verkaveld, blijkt dat er eerder al bewoners waren. Archeologen vonden er archeologische resten uit verschillende periodes uit de oudheid, gaande van werktuigen van neanderthalers, sporen van een Romeins grafveld tot de restanten van een middeleeuwse boerderij. Tijdens de opgraving van één van de Romeinse graven werd een zeer opmerkelijke vondst gedaan. De archeologen troffen er grote fossiele beenderen aan, waarop paleontologen van het Koninklijk Belgisch Instituut voor Natuurwetenschappen werden gecontacteerd.
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De mineralencollectie van Luciaan Vandoorne
