Alvania monserratensis

Alvania monserratensis is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.^[1]

Alvania monserratensis
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Superfamily:	Rissooidea
Family:	Rissoidae
Genus:	Alvania
Species:	A. monserratensis
Binomial name
Alvania monserratensis F. Baker, G. D. Hanna & A. M. Strong, 1930
Synonyms
Alvania keeleri Palazzi, 1978 Alvinia inconspicua (C. B. Adams, 1852) Alvinia monserratensis F. Baker, G. D. Hanna & A. M. Strong, 1930 Rissoa inconspicua C. B. Adams, 1852 (invalid: junior homonym of Rissoa inconspicua Alder, 1844; Alvania keeleri Palazzi, 1978, is a replacement name)

Taxonomy

This and other Western American species were attributed to Alvinia Monterosato, 1884, following Keen (1971); nevertheless it is not proved to be more related to the Mediterranean type species Alvania weinkauffi Weinkauff, 1868 than to other Alvania s.l. and is therefore retained in Alvania. ^[1]

Description

The length of the shell varies between 1 mm and 2 mm.

Distribution

This species occurs off the Monserate Island, Gulf of California; also off the Galapagos Islands