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Achatina Vassei
''Achatina vassei'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Achatinidae, the giant African snails. Of ''‘Achatina’ vassei'' only the holotype was known up to 2010. The collector of the type shell, Guillaume Vasse, was a French big game hunter, who spent roughly two years (1904-1907) in central Mozambique with his wife, collecting mammals, birds, insects, molluscs (very few), and plants for the Paris Museum of Natural History. The type specimen is stored in the Muséum national d'histoire naturelle, Paris (MNHN Mollusca No. 21490). Another discovery of shells at a second locality was published in 2010. Those shells are stored in the Netherlands Centre for Biodiversity Naturalis, Leiden. There appears to be no other museum or collection that holds material of this species. The systematic position of this species is still unclear because of the lack of anatomical data; this taxon is probably a species with a restr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holotype
A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several examples, but explicitly designated as the holotype. Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types. In the International Code of Nomenclature for algae, fungi, and plants (ICN) and ICZN, the definitions of types are similar in intent but not identical in terminology or underlying concept. For example, the holotype for the butterfly '' Plebejus idas longinus'' is a preserved specimen of that subspecies, held by the Museum of Comparative Zoology at Harvard University. In botany, an isotype is a duplicate of the holotype, where holotype and isotypes are often pieces from the same individual plant or samples from the same gathering. A holotype is not necessarily "typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
