Alvania canariensis | |
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Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Subclass: | Caenogastropoda |
Order: | Littorinimorpha |
Superfamily: | Rissooidea |
Family: | Rissoidae |
Genus: | Alvania |
Species: | A. canariensis |
Binomial name | |
Alvania canariensis (d'Orbigny, 1840) | |
Synonyms | |
Rissoa canariensisd'Orbigny, 1840 (original combination) Contents |
Alvania canariensis is a species of minute sea snail, a marine gastropod or micromollusk in the family Rissoidae. [1]
The length of the shell varies between 1 mm and 3 mm.
The imperforate, white shell is solid. It is covered with rounded nodules by the intersection of longitudinal and spiral ribs. The shell contains five whorls, slightly convex, with a rather deep suture. The outer lip is thickened and margined. [2]
About 3 1/2 of the whorls are in the teleoconch, while the other 1 1/2 are in the protoconch. [3]
The protoconch is white, with a black or brown spot at the apex. The teleoconch is usually brown. [3]
The species has been found off the Canary Islands.