PECTINIDAE

Semipallium barnetti

Dijkstra, 1988

Figure

 

Holotype

Original name  Semipallium barnetti Dijkstra, 1988
Autoreference   Dijkstra, 1988: 16-17, figs.
Reference   Dijkstra, H.H., 1988. Two new pectinids from the Philippines (Bivalvia: Pectinidae). - La Conchiglia/The Shell 20 (236-7): 16-18, figs.
Type data   Holotype (pr: H 26 mm, L 21.6 mm, D 6.1 mm) Zoological Museum, University of Amsterdam, Amsterdam (ZMA Moll. 3.88.044). Type locality: Philippines, Cebu, Mactan Island, Magellan Bay, off Punta Engano, 110 m, alive, tangle-net fishing, Jan. 1987.
Description

  Shell up to ca. 25 mm high, left valve slightly more inflated than right valve, oblong, nearly equivalve, inequilateral, auricles strongly unequal, umbonal angle ca. 80-85 degrees, colour creamy orange, sometimes purple or yellow orange, with dark orange or red-brown spots, right valve paler.

  Both valves sculptured with 7-9 primary radial lirae, 1-2 intermediate, and riblets laterally. Delicate shagreen microsculpture in the interspaces throughout. Anterior auricle of left valve radially sculptured with 9-11 delicate riblets. Byssal notch moderately deep, byssal fasciole narrow. Functional ctenolium on suture (6 teeth). Internal plicae.

Distribution

 

Philippines (TL), Indonesia, Papua New Guinea, Solomons, New Caldonia

Habitat  Living upper bathyally amongst coral rubble on sandy bottoms.