PECTINIDAE

Mimachlamys erycina

Dijkstra & Maestrati, 2010

Figures

 

   Holotype

                                                   

Original name  Mimachlamys erycina Dijkstra & Maestrati, 2010
Autoreference   Dijkstra & Maestrati, 2010: 348-350, figs 4G-L.
Reference   Dijkstra, H.H. & P. Maestrati, 2010. Pectinoidea (Mollusca, Bivalvia, Propeamussiidae, Entoliidae and Pectinidae) from the Austral Islands (Frnch Polynesia. - Zoosystema 32 (2): 333-358, 5 figs, 4 tabs.
Type data   Holotype (H 8.9 mm, L 8.9 mm, D 2.1 mm) Muséum National d'Histoire Naturelle (MNHN 21383). Type locality: Austral Islands, E of Rapa Island, 27*40.1'S, 144*21.5'W, 100 m, alive, N.O. "Alis", leg. P. Bouchet & B. Richer de Forges, 08.xi.2002 (BENTHAUS stn DW 1894).
Description

  Shell up to ca. 11 mm high, fragile, semi-transparent, weakly inflated, circular, nearly equivalve, equilateral, valves equally convex, auricles strongly unequal in shape and size, umbonal angle ca. 95-100 degrees, prodissoconch ca. 200 µm in height, brightly creamy, yellowish or orange coloured, usually with some whitish small spots.

  Valves sculptured with 20-24 regularly spaced, radial riblets with widely placed scales on riblets (often eroded). Right valve lacking intercostal radial riblets. Byssal notch deep, byssal fasciole moderately broad. Functional ctenolium with 4-7 teeth on suture.

Distribution

 

Austral Islands (TL)

Habitat  Living upper bathyally at 50-120 m.