simum, Hephthocara Alcock [A. W.] 1892:349, Pl. 18 (fig. 1) [Annals and Magazine of Natural History (Series 6) v. 10 (no. 59); ref. 88] Gulf of Mannar, southern India, 6°58'N, 77°26'50"E, Investigator station 128, depth 902 fathoms. Holotype (unique): ZSI F13172. Type catalog: Menon & Yazdani 1968:149 [ref. 20743] as Hepthocara simum, Menon & Rama-Rao 1975:40 [ref. 22148]. Figured in Alcock 1898: Pl. 22 (fig. 3) [ref. 20534]. •Valid as Hephthocara simum Alcock 1892 -- (Nielsen & Cohen in Nielsen et al. 1999:106 [ref. 24448], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Hephthocara simum Alcock 1892. Bythitidae. Distribution: Northern Indian Ocean. Habitat: marine.