PECTINIDAE

Mirapecten spiceri

(Rehder, 1944)

Figure

 

Holotype (rv)

Original name   Comptopallium spiceri Rehder, 1944
Autoreference   Rehder, 1944: 52, pl. 2 figs 1-2
Reference   Rehder, H.A., 1944. A new pectinid shell from the Pacific Ocean, with a note on the genus Pallium Schroeter. - The Nautlilus 58(2): 52-54.
Type data   Holotype (rv: H 39.8 mm, L 37.9 mm) National Museum of Natural History, Smithsonian Institution, Washington DC (USNM 518010). Type locality: Central Pacific, Line Islands, 01*55'N, 157*20'W, leg. Mr V.D.P. Spicer.
Description

  Shell up to c. 40 mm high, weakly inflated, almost equally convex, slightly elongate, almost inequivalve, nearly equilateral, auricles unequal in shape and size, umbonal angle c. 90 degrees, colour pale orange or yellowish with reddish maculations.

  Both valves sculptured with 8 radial plicae (lv smaller than interspaces, rv equally sized), scales on plicae almost lacking, radial riblets on plicae and in interspaces, more prominent near ventral margin. Commarginal microsculpture throughout. Byssal notch weak, byssal fasciole narrow. Functional ctenolium on suture (c. 6 teeth). Internal rib plicae, delicate carinated near ventral margin.

Distribution

 

Central Pacific, Line Islands (TL)

Habitat  Living sublittorally amongst coral rubble on sandy bottoms.