Histiobranchus Gill [T. N.] 1883:255 Masc. Histiobranchus infernalis Gill 1883. Type by monotypy. •Synonym of Synaphobranchus Johnson 1862 -- (Robins & Robins 1989:219 [ref. 13287]). •Valid as Histiobranchus Gill 1883 -- (Blache et al. 1973:252 [ref. 7185], Asano in Masuda et al. 1984:26 [ref. 6441], Saldanha & Bauchot in Whitehead et al. 1986:588 [ref. 13676], Castle 1986:189 [ref. 5644], Paxton et al. 1989:107 [ref. 12442], Gon 1990:103 [ref. 21680], Gomon et al. 1994:196 [ref. 22532], Sulak & Shcherbachev 1997:1161 [ref. 22986], Karmovskaya & Merrett 1998:1017 [ref. 23683], Mecklenburg et al. 2002:121 [ref. 25968], Paxton et al. 2006:262 [ref. 28995], Smith 2008:162 [ref. 30621], Almeida & Biscoito 2012:495 [ref. 32244], Parin et al. 2014:48 [ref. 33547], Smith & Stewart 2015:242 [ref. 34234]). Current status: Valid as Histiobranchus Gill 1883. Synaphobranchidae: Synaphobranchinae.