Hymenogadus (subgenus of Hymenocephalus) Gilbert [C. H.] & Hubbs [C. L.] 1920:521 Masc. Hymenocephalus gracilis Gilbert & Hubbs 1920. Type by original designation. •Synonym of Hymenocephalus Giglioli 1884 -- (Iwamoto 1979:140 [ref. 2311], Iwamoto & Merrett 1997:514 [ref. 23710], Chiou et al. 2004:44 [ref. 27691]). •Valid as Hymenogadus Gilbert & Hubbs 1920 -- (Okamura in Masuda et al. 1984:93 [ref. 6441], Iwamoto et al. 2011:513 [ref. 31434], McMillan & Iwamoto 2014:129 [ref. 33462], Schwarzhans 2014:23 [ref. 33586], McMillan & Iwamoto 2015:807 [ref. 34263], Iwamoto et al. 2015:78 [ref. 35408], Nakayama 2020:222 [ref. 37888]). Current status: Valid as Hymenogadus Gilbert & Hubbs 1920. Macrouridae.