PECTINIDAE

Pseudohinnites adamsi

(Dall, 1886)

Figures

 

Holotype (lv)                                                                Radial sculpture

Original name   Hinnites adamsi Dall, 1886
Autoreference   Dall, 1886: 223, pl. 5, fig. 6.
Reference   Dall, W.H., 1886. Report on the results of dredging [...] in the Gulf of Mexico by the U.S. coast guard survey steamer "Blake" [...]. Report on the Mollusca. Part 1. Brachiopodes and Pelecypodes. - Bulletin of the Museum of Comparative Zoology, Harvard, 12 (6): 171-318.
Type data   Holotype (lv: H 30 mm, L 28 mm) National Museum of Natural History, Smithsonian Institution, Washington DC (USNM 333.632). Type locality: West Indies, eastern Caribbean Sea, off St. Vincent, 13*10'N, 61*18'W, 1048 m, dead, fine sand and gray ooze (R.V. "Blake" stn 227).
Description

  Shell up to ca. 30 mm high, thin, semi-circular, irregularly shaped (Hinnites-like), weakly inflated, left valve convex, right valve flattened, inequivalve, inequilateral, anterior auricle slightly longer than posterior, and continuous with disc, umbonal angle ca. 90 degrees, colour whitish, internally nacreous.

  Left valve sculptured with numerous, irregularly spaced, irregular lamellar radial ribs (ca. 30). Right valve nearly flat with irregular depressions and transparent. Byssal notch shallow. Functional ctenolium with 3-5 small teeth.

Distribution

 

Tropical western Atlantic, eastern Caribbean Sea (TL)

Habitat   Living bathyally on soft bottom assemblages.