Laevichlamys, Waller, 1993

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 : 237-238

Key to species of Laevichlamys from Australia

1 Shell c. 30 mm high, oblong, thin, weakly inflated, almost equivalve and equilateral, auricles unequal, valves with numerous (c. 60) closely and evenly spaced, squamous radial riblets, byssal notch deep, byssal fasciole broad ............................................................. L. andamanica

—— Shell with 40–50 unevenly spaced radial riblets ....................................................................... 2

2 Shell c. 40 mm high, subcircular to prosocline, thin, weakly inflated, almost equally convex, auricles highly unequal, valves with 40–50 unevenly spaced, minute squamose radial riblets, byssal notch deep, byssal fasciole broad .................................................................... L. cuneata

—— Shell with 45–50 spinous radial riblets ..................................................................................... 3

3 Shell c. 25 mm high, oblong, almost equally inflated, equivalve and equilateral, auricles highly unequal, valves with 45–50 unevenly spaced, spinous radial riblets, byssal notch weak, byssal fasciole narrow .................................................................................... L. deliciosa

—— Shell with 60–70 spinous radial riblets ..................................................................................... 4

4 Shell c. 30 mm high, ovate, some prosocline or acline, thin, valves almost equally weakly inflated, auricles highly unequal, valves with 60–70 very closely, unevenly spaced spinous radial riblets, byssal notch deep, byssal fasciole broad ........................................................ L. limatula

—— Shell with numerous (>100) evenly spaced radial riblets ......................................................... 5

5 Shell c. 50 mm high, circular, thin, weakly inflated, almost equally convex, auricles unequal, valves with numerous (>100) evenly spaced, very delicate squamous radial riblets, byssal noch deep, byssal fasciole broad ........................................................................................... L. mollita

—— Shell with 9–12 low, coarsely scaly primary radial ribs on lv .................................................. 6

6 Shell c. 65 mm high, subcircular to ovate, thin, flattened, right valve slightly more inflated than left, auricles highly unequal, left valve with primary and secondary radial riblets, irregular in prominence, right valve more evenly radially sculptured with c. 25–35 riblets, byssal notch deep, byssal fasciole broad ...................................... L. squamosa

—— Shell with 60–70 radial riblets. uneven in spacing and prominence ................................................................................................................................ 7

7 Shell c. 35 mm high, oblong, somewhat prosocline, thin, moderately inflated, almost equally convex, auricles highly unequal, valves with 60–70 weak, low, squamous radial riblets, uneven in spacing and prominence, byssal notch deep, byssal fasciole broad ........................................................................................... L. wilhelminae