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Taxon profile

species

Frigidoalvania janmayeni (H.B.S. Friele, 1878)

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Littorinimorpha »  family Rissoidae »  genus Frigidoalvania

Scientific synonyms

Manzonia janmayeni Friele, 1878

Images

Frigidoalvania janmayeni

Author: Nordsieck, F.

Frigidoalvania janmayeni

Author: Kantor & Sysoev

Frigidoalvania janmayeni

Author: Warén, A.

Taxon in country check-lists*

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Description

The shell, which was about 1.8 mm. long, was tan, with 2 reddish tan, beaded cords per whorl. The oval, yellow operculum consists of an acentric nucleus with two spirals. The shell, which was somewhat broken, subsequently dissolved, leaving the body and operculum of the animal.
Dr. Thorson, who examined the fragmentary shell, says that the color and the size and structure of the apex agree well with living specimens from eastern Greenland, but the condition of the shell renders positive identification impossible.
MacGintie, N. (1959) Marine Mollusca of Point Barrow, Alaska.

Interchangeable taxa

Frigidoalvania janmayeni is highly characteristic with its very coarse sculpture of rounded ribs and thick, dark brown, fcrrugineous pcriostracum. often covered by similarly coloured rust deposits.
Warén, A. 1996 - New and little known Mollusca from Iceland and Scandinavia. Part 3.

Distribution

Northeastern Canada, Greenland, northern Iceland, northern Norway, Svalbard, the White Sea and the Kara Sea. to 75° E, in 10 - 520 m (WAREn 1974, GOLIKOV & FEDJAKOV 1987. WAREN 1989a)
Warén, A. 1996 - New and little known Mollusca from Iceland and Scandinavia. Part 3.
Point Barrow; and (Thorson, 1944) Newfoundland to Cape Cod, eastern and western Greenland; Jan Mayen, and Spitsbergen.
MacGintie, N. (1959) Marine Mollusca of Point Barrow, Alaska.
Author: Jan Delsing

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Frigidoalvania janmayeni Friele, 1873]
Data retrieved on: 22 November 2013

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