angusticeps, Priodonophis Hildebrand [S. F.] & Barton [O.] 1949:5, Fig. 2 [Smithsonian Miscellaneous Collections v. 111 (no. 10); ref. 13015] Talara, Peru. Holotype (unique): USNM 144254. Type catalog: Smith 1994:23 [ref. 21917]. Böhlke & Smith 2002:92-93 [ref. 26380] •Valid as Gymnothorax angusticeps (Hildebrand & Barton 1949) -- (Chirichigno F. & Vélez D. 1998:130 [ref. 24555], Bussing 1998:444 [ref. 24930], Böhlke 2001:3 [ref. 25774], Böhlke & Smith 2002:93 [ref. 26380], McCosker & Rosenblatt 2010:188 [ref. 30957], Smith 2012:11 [ref. 32155], Sánchez-Jiménez et al. 2018:6 [ref. 36248]). Current status: Valid as Gymnothorax angusticeps (Hildebrand & Barton 1949). Muraenidae: Muraeninae. Distribution: Eastern Pacific: Costa Rica south to Peru. Habitat: marine.