PROPEAMUSSIIDAE  

Catillopecten squamiformis

(Bernard, 1978)

Figure(s)

 

         

Holotype

Original name   Cyclopecten squamiformis  Bernard, 1978
Autoreference   Bernard, 1978: 69, 16, text-fig. 6.
Reference   Bernard, F.R., 1978. New bivalve molluscs from NE Pacific. - Venus 37 (2): 61-75, 18 figs.
Type data   Figured holotype (pr: H 9.1 mm, L 11.6 mm, D 1.4 mm) Los Angeles County Museum, Los Angeles (LACM 1884). Type locality: NE Pacific, Oregon, W of Astoria, 45*52.7'N, 126*29.4'W, 2650 m, alive, 02.1971 (Oregon State University stn BMT 260).
Description

  Shell up to ca. 10 mm high, very fragile, semi-transparent, micaceous, very weakly inflated, left valve weakly convex, right valve flatter, semi-circular, longer than high, inequivalve, equilateral, auricles nearly equal in size, unequal in shape and very small, internal ribs lacking, umbonal angle ca. 110 degrees.

  Left valve with irregularly spaced commarginal lamellae and minute radial lirae. Right valve with closely spaced, delicate commarginal lirae. Posterior auricles and anterior auricle of left valve continous with disc, anterior auricle of right valve demarcated from disc. Byssal notch shallow, byssal faciole and ctenolium lacking.

Distribution

 

NE Pacific, Oregon (TL)

Habitat Living abyssally on soft bottom assemblages.