cavernosus, Bathygadus Goode [G. B.] & Bean [T. H.] 1885:598 [Proceedings of the United States National Museum v. 8 (no. 543); ref. 1842] Gulf of Mexico, 28°45'N, 86°26'W, Albatross station 2398, depth 227 fathoms. Holotype (unique): USNM 37337. •Synonym of Hymenocephalus italicus Giglioli 1884 -- (Marshall 1973:289 [ref. 7194], Geistdoerfer 1990:553 [ref. 16195], Schwarzhans 2014:55 [ref. 33586]). Current status: Synonym of Hymenocephalus italicus Giglioli 1884. Macrouridae. Habitat: marine.