Polystira oxytropis explained

Polystira oxytropis is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids.

Description

The horn-colored shell contains several sharp keels and numerous spiral raised lines. The upper keel is the strongest, angulating the whorls, the surface concave above it. ^[1]

P. oxytropis is considered an "umbrella species" with considerable diversity as shown by DNA sequence data coupled with conchological studies. ^[2]

Distribution

This is an Eastern Pacific species, occurring off Western Mexico, in the Gulf of Panama and the Pacific coast of Colombia.

References

• Berry S.S. (1957). Notices of new eastern Pacific Mollusca.- I. Leaflets in Malacology. 1(14): 75-82.

External links

• Sowerby, G. B. I. (1833-1834). [Characters of new species of shells from the collection formed by Mr. Cuming on the western coast of South America and among the islands of the South Pacific Ocean]. Proceedings of the Zoological Society of London. 1833: 16-22, 34-38]

Notes and References

1. https://ia600307.us.archive.org/10/items/manualconch06tryorich/manualconch06tryorich.pdf G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol. VI; Philadelphia, Academy of Natural Sciences
2. https://dx.doi.org/10.11646/zootaxa.3884.5.5 Todd J.A. & Rawlings T.A. (2014). A review of the Polystira clade — the Neotropic’s largest marine gastropod radiation (Neogastropoda: Conoidea: Turridae sensu stricto). Zootaxa. 3884(5): 445-491