Scaeochlamys Iredale, 1929

Dijkstra, Henk H. & Beu, Alan G., 2018, Living Scallops of Australia and Adjacent Waters (Mollusca: Bivalvia: Pectinoidea: Propeamussiidae, Cyclochlamydidae and Pectinidae), Records of the Australian Museum (Rec. Aust. Mus.) 70 (2), pp. 113-330 : 255

Scaeochlamys Iredale, 1929

Scaeochlamys Iredale, 1929: 162 . Type species (by original designation): Pecten lividus Lamarck, 1819 ; Recent, southwestern, southern and southeastern Australia.

Diagnosis. Pedini attached by byssus, prosocline or prosogyrate in form, right valve flattened (distorted in most specimens), left valve convex; macrosculpture of unevenly spaced, strongly scaly, primary radial plicae and secondary interstitial riblets at least in early ontogeny; prominent interstitial shagreen microsculpture on anterior auricle of left valve and on disc at least in early ontogeny; byssal notch deep, ctenolium well-developed. Hinge with prominent resilial and dorsal teeth. Interior weakly plicate.

Distribution. Pleistocene [e.g., Japan ( Masuda, 1962), Red Sea (Cox, 1929)]–Recent. (Sub)tropical Indo-West Pacific to temperate waters of the NW and SW Pacific, living in the intertidal to sublittoral zones, byssally attached to rocks, gravel or other hard substrates.

Discussion. Hertlein (1969: N355) treated Scaeochlamys as a junior synonym of Chlamys Röding, 1798 , placed in the suprageneric Chlamys group. Vaught (1989: 118) followed Hertlein. Waller (1993: 203) recognized Scaeochlamys as a genus in Chlamydini (i.e., Pedini ).