''Perrona perron'' 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

Clavatulidae Clavatulidae is a taxonomic family of sea snails, marine gastropod mollusks in the superfamily Conoidea. The family is not well differentiated morphologically. Clavatulidae was raised, based on cladistic analysis, from subfamily to the family ...

Description

The shell grows to a length of 25 mm. The pale yellow, fusiform shell is turreted and rather smooth. The

whorls 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 d ...

are flat, with flexuous longitudinal lines, slightly angulated round the upper part. The lower portion of the last whorl is contracted and has several regular, distant revolving ridges. The anal sinus is nearly central. George Washington Tryon, Manual of Conchology vol. VI p. 232 (described as ''Clavatula perron'')

Distribution

This species occurs in the Atlantic Ocean from Gabon to North Angola.

References

* Chemnitz, Syst. Conch. Cab., 10: 278, pl. 164, figs. 1573-74

External links

*
Walter O. "TYPE SPECIMENS OF MOLLUSCA IN THE UNIVERSITY ZOOLOGICAL MUSEUM, COPENHAGEN." Records of the Auckland Institute and Museum 11 (1974): 143–92.
{{DEFAULTSORT:Perrona perron perron Gastropods described in 1791