PROPEAMUSSIIDAE  

Similipecten greenlandicus

(Sowerby II, 1842)

Figure(s)

 

    

lv                                                                        rv

Topotype

 

Original name   Pecten greenlandicus Sowerby II, 1842
Autoreference   Sowerby II, 1842: 57, pl. 13, fig. 40.
Reference   Sowerby, G.B. (2nd), 1842. Thesaurus Conchyliorum, or figures and descriptions of Recent shells. Volume 1, Part 2. Monograph of the genera Pecten and Hinnites. Sowerby, London. Pp. 41-82, pls 11-20.
Type data   Type material not traced (not in The Hancock Museum, Newcastle upon Tyne or The Natural Museum, London). Type locality: Greenland.
Description

  Shell up to ca. 30 mm high, very fragile, transparent to opaque milky white, weakly inflated, left valve somewhat more convex than right valve, nearly circular, equivalve, nearly equilateral, auricles nearly equal in size, unequal in shape, posterior auricles smooth and continuous with disc, anterior demarcated and somewhat curved marginally, internal ribs lacking, umbonal angle ca. 120 degrees.

  Left valve with antimarginal microsculpture and commarginal growthlines near ventral margin.

  Right valve with commarginal growthlines. Byssal notch shallow, byssal fasciole narrow, ctenolium lacking.

Distribution

 

Arctic region, E Canada, Greenland (TL), Iceland, Faeroes, NW Norway

Habitat Living lower littorally and bathyally on soft bottom assemblages.