PECTINIDAE

Mirapecten tuberosus

Dijkstra & Kilburn, 2001

Figure

 

Holotype

Original name  Mirapecten tuberosus Dijkstra & Kilburn, 2001
Autoreference   Dijkstra & Kilburn, 2001: 283, figs 16-19.
Reference   Dijkstra, H.H., & R.N. Kilburn, 2001. The family Pectinidae in South Africa and Mozambique (Mollusca: Bivalvia: Pectinoidea). - African Invertebrates 42: 263-321.
Type data   Holotype (pr: H 32.2 mm, L 36.9 mm, D 11.5 mm) Natal Museum at Pietermaritzburg (NMSA D6476/T1725). Type locality: South Africa, northern Zululand, off Dog Point, 27*06.5'S, 32*52.9'E, 70 m, dredged alive, sandstone conglomerate, NMDP, 04.vi.1987.
Description

  Shell rather solid up to ca. 40 mm high, inflated, wider than high, triangularly circular, inequivalve and inequilateral, right valve more convex than left valve, auricles strongly unequal in shape, umbonal angle ca. 90-95 degrees, colour uniform red, reddish-orange, orange or yellow, right valve paler, interior glossy.

  Left valve sculptured with five primary radial plicae, covered with 3-7 tubercular spines (in early radial stage) or vesicles (in late radial stage) and four secondary intercostal lirae. Right valve with five bipartite radial plicae, covered with 4-7 small vesicles. Anterior auricle with 4-6 radial riblets, lacking on posterior auricle. Byssal notch moderately deep, byssal fasciole rather broad. Functional ctenolium on suture (ca. 6 teeth).

Distribution

 

Red Sea, Seychelles, Mauritius, Reunion, South Africa (TL)

Habitat  Living lower sublittorally amongst coral and sandstone rubble on sandy bottoms.