Oenopota pyramidalis

Oenopota pyramidalis, common name the pyramid lora, is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.^[1]

Oenopota pyramidalis
Image of a shell of Oenopota pyramidalis
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Mangeliidae
Genus:	Oenopota
Species:	O. pyramidalis
Binomial name
Oenopota pyramidalis (Ström, 1788)
Synonyms[1]
Bela pyramidalis (Ström, 1788) Bela pyramidalis var. semiplicata Sars G.O., 1878 Bela pyramidalis var. valdeplicosa Posselt, H.J., 1898 Buccinum pyramidale Ström, 1788 Buccinum pyramidalis Strom, 1788 Defrancia vahli Møller, 1842 Fusus discors Brown, C.T., 1827 Fusus pleurotomarius Couthouy, 1838 Lora (Bela) pleurotomaria (Couthouy, 1838) Lora halitropa Dall, W.H., 1919 Lora pleurotomaria (Couthouy, 1838) Murex rufus Montagu, G., 1841 Oenopota discors T. Brown, 1827 Oenopota pleurotomaria J.P.Y. Couthouy, 1838 Oenopota rufus G. Montagu, 1841 Pleurotoma pyramidalis (Strøm, 1788) Pleurotoma pyramidalis var. jenisseensis Leche, 1878

Description

The length of the shell varies between 10 mm and 23.5 mm.

The shell has usually a rather high spire with seven or eight tolerably convex whorls, scarcely or not at all shouldered. It shows 13 to 16 sigmoid ribs, fading out about or above the middle of the body whorl. There are numerous, fine, close revolving lines, sometimes not apparent on the ribs. The color of the shell is pale chestnut, when fresh. The species varies considerably in the elevation of the spire and in ther^{[clarification needed]} stoutness, as well as in the development of the ribs.^[2]

Distribution

This species occurs in European waters, the Northwest Atlantic Ocean, the Arctic waters of Canada, the Gulf of Maine. Fossils have been found in Quaternary strata of Iceland (age range: 0.126 to 0.012 Ma).