macrocephalus, Nematonurus Maul [G. E.] 1951:17, Figs. 3, 4c [Boletim do Museu Municipal do Funchal No. 5 (art. 12); ref. 12899] Off Madeira, depth 600-1000 meters. Holotype: MMF 898 (mounted). Paratypes: BMNH 1961.3.1.1 (1); MMF (1, skin). •Valid as Coryphaenoides macrocephalus (Maul 1951) -- (Marshall 1973:296 [ref. 7194], Geistdoerfer in Whitehead et al. 1986:658 [ref. 13676], Geistdoerfer 1990:551 [ref. 16195]). •Questionably a synonym of Coryphaenoides paradoxus (Smith & Radcliffe 1912) -- (Iwamoto & Sazonov 1988:72 [ref. 6228]). •Valid as Coryphaenoides macrocephalus (Maul 1951) -- (Iwamoto in Cohen et al. 1990:212 [ref. 18936]). •Synonym of Coryphaenoides rudis Günther 1878 -- (Shcherbachev & Iwamoto 1995:301 [ref. 22071], Iwamoto & Williams 1999:170 [ref. 23875], Merrett & Iwamoto 2000:754 [ref. 25037], Mundy 2005:251 [ref. 28379], Nakayama & Endo 2016:[7] [ref. 34404], Nakayama 2020:200 [ref. 37888]). Current status: Synonym of Coryphaenoides rudis Günther 1878. Macrouridae. Habitat: marine.