''Leucosyrinx equatorialis'' 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

Pseudomelatomidae Pseudomelatomidae is a family of predatory sea snails, marine gastropods included in the superfamily Conoidea (previously Conacea) and part of the Neogastropoda ( Bouchet & Rocroi, 2005). In 1995 Kantor elevated the subfamily Pseudomelatominae ...

, the turrids and allies.

Description

The length of the shel attains 13.5 mm, its diameter 6 mm. (Original description) The white shell is rather solid, with about six shouldered

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. The apex is eroded. The suture is distinct, slightly constricted and appressed. The axial sculpture consists of about 14 rounded ribs nearly reaching the

siphonal canal The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is ...

with subequal interspaces. Incremental lines are inconspicuous. The spiral sculpture consists of uniform spiral grooves with wider flattish interspaces, cutting the tops of the ribs. The aperture is short and simple. The inner lip is callous. The short siphonal canal is recurved. Dall (1919) Descriptions of new species of Mollusca from the North Pacific Ocean; Proceedings of the U.S. National Museum, vol. 56 pp.1–86, 24 pls (1920)

Distribution

This marine species occurs off Ecuador to Southern Chile

References

External links

* {{DEFAULTSORT:Leucosyrinx Equatorialis equatorialis Gastropods described in 1919