Circomphalus disjectus (Perry, 1811)
Tasmania venus clam
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Family:  Veneridae (venus clams)
Max. size: 
Environment:  benthic; marine
Distribution:  Endemic to southern Australia and Tasmania.
Diagnosis:  Shell: delicate, moderately swollen, equivalve and inequilateral, yellowish-whitish in color; sculpture has thin pink concentric lamellae, well-spaced, curve, grooved on the outer surface, prolonged posteriorly to form a spoutlike process; in between lamellae are thin growth lines; very longe ligament deeply set in the dorsal margin runs from the umbones to the end of the hinge which is heterodont with only three cardinal teeth on each valve; muscle scars almost equal (dimyarian, isomyarian); Pallial line has a shallow sinus (sinopalliate). Body: pair of gills each has two series of lamellae extensively fused in interlamellar junctions (eulamellabranch); foot and siphon moderately developed.
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans:  harmless
Country info:   

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