A summary of reports of abyssal and hadal Monoplacophora and Polyplacophora (Mollusca) * Author Schwabe, Enrico text Zootaxa 2008 1866 205 222 journal article 10.5281/zenodo.183815 7ce45df8-da22-4d29-810c-33564fb50f16 1175­5326 183815 Leptochiton assimilis ( Thiele, 1909 ) Lepidopleurus assimilis Thiele 1909 : 11 , pl. 1, figs 30–39. Without further comments, Jakovleva (1952) mentioned that this species occurs in the Sea of Japan in a bathymetric range from 8 to 2000 m . No subsequent paper confirmed the occurrence of this species at an abyssal depth.