Propeamussiidae, Abbott, 1954

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 : 121

Key to genera of Propeamussiidae occurring in Australia

1 Shell with auricles equal in size, lacking byssal notch in adult, internal riblets commencing early, and external sculpture weak.......................... Propeamussium

—— Shell with unequal auricles, and with byssal notch and internal riblets ......................................................................................................................................... 2

2 Shell prominently commarginally sculptured on rv, internally with riblets commencing after early growth stage .............................................. Parvamussium

—— Shell of most specimens lacking internal riblets ....................................................................... 3

3 Shell prominently radially and/or commarginally sculptured externally, with vesicles on many specimens; internal riblets lacking from most specimens, rudimentary on a few .............................................. Cyclopecten

—— Shell lacking commarginal sculpture on rv ............................................................................... 4

4 Shell with raised anterior auricle and broad hinge dentition ................................... Similipecten

—— Shell commarginally undulated ................................................................................................. 5

5 Shell flattened, commarginally sculptured on both valves ..................................... Catillopecten