Medium size, flattened, ears very unequal, thin, obliquely oval; colour pale orange to orange brown; internally white; right valve apically smooth, then sculptured with about 20 slender radial ribs, the interstices very broad; ribs a little wavy at first, later obliquely radiating with a gentle curve; lamellae arise and these are placed rather distant, and, growing angulate and tallish, resemble thorns; interstices between the ribs are minutely scratched longitudinally; sculpture on left valve is similar, but the prickles begin at an earlier stage, and are more closely packed posteriorly; hinge line straight, ligamental pit triangular, small, with scarcely perceptible ridge and corresponding groove very minutely serrated; ears, the posterior auricle of right valve is small, obliquely arranged with three or four prickly lines; the anterior auricle has four ribs crossed by strong lines almost like lamellae, and the ctenolium is broad, shallow, and lined; the posterior auricle of the left valve is small and scarcely ribbed, only oblique growth lines occurring; the anterior auricle has half a dozen linear ribs furnished with fine prickles. Length 25 mm, height 29 mm. Type locality: from 150-250 fathoms off Oabo Island, Victoria.
Loc.: Beachport to Cape Jaffa, 130-300 fathoms. S.A, Vict, N.S.W.

Remarks: Verco dredged six valves in South Australian waters. Chlamys perillustris is the type species of Veprichlamys Iredale 1929 and Chlamys challengeri Smith 1891, N.S.W, is related.

Shell length to 37 mm; compressed, right valve slightly more inflated than the left. Sculpture: about 20 narrow, rounded radial ribs are irregularly and distantly scaled; interstices broad with fine radial striae; the radial striae in the right valve are much stronger than in the left; there is also fine concentric sculpture in the interstices. Colour: off-white, internally and externally. Habitat: offshore, to 450 metres. Distribution: northern Victoria to New South Wales.