(Sowerby, 1813)

Description (shell):
In general like other Emarginula species. Finely reticulate, seems rather smooth. With about 50 radiating costae.

Size:
Up to 30 x 20 x 15 mm.

Colour:
White.

Animal:
Foot with about 30 epipodial tentacles.

Habitat:
Under stones, rarely at LWST, more frequent sublittorally to 200 m.

Distribution:
Northern species which is limited in Britain to west Scotland, Orkney and Shetland (Distr. E. crassa). Also recorded from south-west Ireland and Antrim. Commoner in Norway and Iceland.

Kingdom Animalia
Phylum Mollusca
Class Gastropoda
Subclass Prosobranchia
Superorder Archaeogastropoda
Order Vetigastropoda
Family Fissurellidae
Genus Emarginula
Species Emarginula crassa

Status in World Register of Marine Species

Accepted name: Emarginula crassa Sowerby J., 1813

Scientific synonyms and common names

Emarginula crassa Sowerby J., 1813
Emarginula magnifica Pilsbry, 1891
Emarginula anassa Dean, 1926

Graham, Alastair F.R.S., 1988. Molluscs: Prosobranch and Pyramidellid Gastropods. Synopses of the British fauna (NS), 2: 1-662.

Jeffreys, J.G., 1869. British conchology. Vol. V -258 pp. Van Voorst, London.

Poppe, G.T. & Y. Goto, 1991. European Seashells. Vol. I. 352 pp. Wiesbaden/Verlag Christa Hemmen.

Seaward, D.R., 1990. Distribution of the marine molluscs of north west Europe. Nature Conservancy Council.

You can continue searching for Emarginula crassa on one of these Web sites:

Fauna Europaea (animals) | IOPI (plants) | NCBI (genetic)

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