PECTINIDAE

Serratovola angusticostata

Dijkstra, 2008

Figure

 

  

Holotype

Original name  Serratovola angusticostata Dijkstra, 2008
Autoreference   Dijkstra, 2008: 60, figs 7-12 (holotype)
Reference   Dijkstra, H.H., 2008. A new species of Recent scallop of the genus Serratovola (Bivalvia, Pectinidae) from the tropical Indo-West Pacific. - Basteria 72(1-3): 57-63, figs 1-24.
Type data   Holotype (pr: H 34.7 mm, L 37.1 mm, D 10.4 mm) Zoological Museum Amsterdam (ZMA Moll. 4.08.014). Type locality: Philippines, Cebu, Mactan Island, Punta Engano, 10.31667 N, 124.0167 E, 80-150 m, alive, 'tangle-net' fishing, 1981.
Description

  Shell small, up to ca. 35 mm high, circular, left valve flat or slightly inflated, right valve convex, inequivalve, equilateral, auricles nearly equal in size,unequal in shape, colour of left valve creamy red-brownish with commarginal brownish maculations and brownish radial streak on the ribs, right valve off-white with minute red-brownish dots near the umbo, inside whitish with large brown dot near adductor scar.

  Left valve with 18 narrow angular radial costae with hollow sections laterally, seperated by a solid central radial keel. The interspaces are broader than the radial ribs near the central of the ventral margin. Right valve with 19 angular radial costae with  tripartite appearance by 'dentrition'. Interspaces somewhat narrower than the radial ribs. Auricles with3-4 delicate radial ridges. Byssal notch shallow. Functional ctenolium lacking.

Distribution

 

Taiwan, Philippines (TL), Indonesia, westwards to Thailand and eastwards to Papua New Guinea

Habitat  Living sublittorally on soft bottom assemblages.