''Oscilla ligata'' 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 Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

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 Pyramidellidae, the pyrams and their allies.

Description

The rather thin shell has a rosy-white color and measures 2 mm. The six

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 floral ...

s of the teleoconch have prominent spiral ribs. The outer lip is simple. The columella has a small transverse plait.G.W. Tryon, Manual of Conchology vol.VIII p. 310 (described as ''Pyramidella (Oscilla) ligata'')
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Distribution

This marine species occurs off New South Wales, Australia.

References

* Okutani T., ed. (2000) ''Marine mollusks in Japan''. Tokai University Press. 1173 pp. page(s): 729 {{Taxonbar, from=Q6872655 Pyramidellidae Gastropods described in 1877