* Dysomma opisthoproctus Chen & Mok, 1995

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Dysomma opisthoproctus Chen & Mok, 1995:927, fig. 1 (type locality: off the coast of Nan-Fang-Ao, northeastern Taiwan, 200 m). Smith, 1999a:1661; Chen & Mok, 2001:79; Shao et al., 2008:238; Ho & Shao, 2011:22, table 1; Ho et al., 2015d:98.

Remarks. A rare species, to date known only from the holotype.