Daphnella Vitrea
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''Daphnella vitrea'' is a species of
sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
, a marine
gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk in the family
Raphitomidae Raphitomidae is a family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet P. & Rocroi J.-P. (Ed.) (2005). "Classification and nomenclator of gastropod families". '' Malacologia'' 47(1-2). . 3 ...
.MolluscaBase (2018). Daphnella vitrea Garrett, 1873. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=719361 on 2019-04-02 This is a
taxon inquirendum In biological classification, a ''species inquirenda'' is a species of doubtful identity requiring further investigation. The use of the term in English-language biological literature dates back to at least the early nineteenth century. The term ...
. The variety ''Daphnella vitrea'' var. ''articulata'' Hervier, 1897 is also a taxon inquirendum.


Description

The length of the shell attains 8 mm. The thin, white shell is vitreous and subpellucid. It contains eight
whorl A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane flo ...
s, obtusely narrowly shouldered above, covered by fine spiral striae. The upper whorls are longitudinally ribbed. Each whorl shows two slight periodical varices. The outer lip is finely crenulated, slightly varicose externally. The sinus is large and deep.G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol. VI; Philadelphia, Academy of Natural Sciences


Distribution

This species occurs ioff the
Paumotus The Tuamotu Archipelago or the Tuamotu Islands (french: Îles Tuamotu, officially ) are a French Polynesian chain of just under 80 islands and atolls in the southern Pacific Ocean. They constitute the largest chain of atolls in the world, exten ...
, Polynesia.


References


External links

* {{DEFAULTSORT:Daphnella Vitrea
vitrea ''Vitrea'' is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Pristilomatidae. According to the World Register of Marine Species this genus belongs in the family ''Zonitidae''. Species This ge ...
Gastropods described in 1873