''Perrona perron'' is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

of sea snail, a marine gastropod

mollusk 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 es ...

in the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Clavatulidae.

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 George Washington Tryon Jr. (20 May 1838 – 5 February 1888) was an American malacologist who worked at the Academy of Natural Sciences in Philadelphia. Biography George Washington Tryon was the son of Edward K. Tryon and Adeline Savidt. ...

, Manual of Conchology vol. VI p. 232 (described as ''Clavatula perron'')

Distribution

This species occurs in the Atlantic Ocean from

Gabon Gabon (; ; snq, Ngabu), officially the Gabonese Republic (french: République gabonaise), is a country on the west coast of Central Africa. Located on the equator, it is bordered by Equatorial Guinea to the northwest, Cameroon to the north ...

to North

Angola , national_anthem = "Angola Avante"() , image_map = , map_caption = , capital = Luanda , religion = , religion_year = 2020 , religion_ref = , coordina ...

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 Perron may refer to: People * Count Perron ( it, Conte de Perron; ), Sardinian ambassador and secretary of state * Ernest Perron (1908–1961), a Swiss man who became politically powerful in Iran * Pierre Cuillier-Perron (1753–1834), a French ...

Gastropods described in 1791