Size / Weight / Age
Max length : 8.9 cm TL male/unsexed; (Ref. 296)
Demersal; depth range 0 - 5 m (Ref. 290)
Climate / Range
Girdle: Medium wide which is sandy and profusely covered with stiff bristles. Mucro: Highly posterior; depressed. Central areas: Longitudinally ribbed with sharp nodulose ribs transversed with subtle wide obsolete ribs forming a basket weave. Lateral areas: Heavily beaded rib. Inside area: Covered with oval shaped granulations. Color of the valves: Grays to black; rarely, a specimen with blue or orange valves may be found. Color of the girdle: Cream with brownish red bristles (Ref. 296).
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Estimation of some characteristics with mathematical models