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CARDITIDAE CARDITINAE |
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Vimentum dilectum (E.A. Smith, 1885) Description: Shell well inflated. Shape umbo located on midline; anterior dorsal margin slightly concave, posterior dorsal margin straight to slightly convex; ventral margin smoothly rounded. Lunule not strongly defined, large, shallow. Exterior with about 28 radial ribs with narrow interspaces, crossed by dense, more closely spaced commarginal grooves, forming brick-shaped nodules. Interior with external sculpture showing through weakly; anterior and posterior muscle scars well defined, pallial line continuous; margin coarsely crenulate. Hinge strong; left valve with single cardinal tooth and long, blade-shaped lateral; right valve with cardinal and strong, slotted lateral. Ligament external. Shell colour white with irregular patches of light or dark brown. Interior white or pale pink. Size: Up to 10 mm length. Distribution: Endemic to Australia: Cape Moreton, Qld, southwards and around southern Australia, to south-western WA, including Tas. Habitat: Subtidal 50-300 m. Fig. 1: 2.2 km east of Cape Banks, NSW, in 49 m depth (C.36377)
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