''Ithycythara pentagonalis'' 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 ...

mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...

in the family Mangeliidae. Tucker considers ''

Ithycythara auberiana ''Ithycythara auberiana'' is a species of sea snail, 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 c ...

'' a synonym of ''Ithycythara pentagonalis'' Reeve, L.A., 1845 Tucker, J.K. 2004 ''Catalog of recent and fossil turrids (Mollusca: Gastropoda)''. Zootaxa 682:1–1295

Description

The smooth, ivory white shell has an oblong-ovate shape. It is longitudinally five-angled. It shows compressed ribs at the angles, pointed at the upper part of the ribs.

Distribution

This marine species occurs off St Vincent, West Indies.

References

pentagonalis Gastropods described in 1845 {{Mangeliidae-stub