Scleroconcha nanocristata Chavtur, 1983: 25, 28, 62, 70, figs. 20, 3– 7 and 21, 1– 2, table 2 (list); 1992: table 2 (list).
Distribution and Ecology. Only a single specimen of S. nanocristata is known. It was collected in the Tatar Strait, near the South Sakhalin (East Sea: 47 º 26´N, 141 º 27´E) at a depth of 90 m (grey mud) (Fig. 1).