Oenopota althorpi

Oenopota althorpi
	Original image of a shell of Oenopota althorpi
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Clade:	Caenogastropoda
Clade:	Hypsogastropoda
Clade:	Neogastropoda
Superfamily:	Conoidea
Family:	Mangeliidae
Genus:	Oenopota
Species:	O. althorpi
Binomial name
	Oenopota althorpi; (W.H. Dall, 1919)
Synonyms
	Mangelia althorpi (W.H. Dall, 1919); Mangilia althorpi W.H. Dall, 1919 (original description);

Oenopota althorpi is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.[1]

Description

The length of the shell attains 11.5 mm, its diameter 4.5 mm.

(Original description) The small shell is waxen white, superficially resembling Oenopota granitica (W.H. Dall, 1919), but differing in the following particulars: It has one rib less; the two prominent spiral cords on the early whorls are strongly nodulous when they cross the ribs, especially the posterior cord, even on the body whorl. The spiral sculpture on the body whorl in front of the fasciole comprises 10 strong flattish cords, separated by very sharp, narrow grooves, with no spiral sculpture on the back of the siphonal canal, which is distinctly shorter. The aperture is relatively shorter and wider. ; The protoconch is apparently similar but eroded, the number of whorls is the same but the shell is shorter.[1]

Distribution

This species occurs off Alaska, found at Port Althorp.

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References

Dall (1919) Descriptions of new species of Mollusca from the North Pacific Ocean; Proceedings of the U.S. National Museum, vol. 56 (1920) This article incorporates text from this source, which is in the public domain.

External links

Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.
"Oenopota althorpi". Gastropods.com. Retrieved 16 January 2019.

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[Dall-1] Dall (1919) Descriptions of new species of Mollusca from the North Pacific Ocean; Proceedings of the U.S. National Museum, vol. 56 (1920) This article incorporates text from this source, which is in the public domain.