simus, Exocoetus Valenciennes [A.] in Cuvier & Valenciennes 1847:105 [Histoire naturelle des poissons v. 19; ref. 4883] Hawaiian Islands. Holotype (unique): MNHN B-0836. Type catalog: Bruun 1937:182-183 [ref. 12982], Collette et al. 1997:13 [ref. 22813]. •Valid as Cheilopogon simus (Valenciennes 1847) -- (Randall et al. 2004:9 [ref. 27624]). •Valid as Cypselurus simus (Valenciennes 1847) -- (Parin 1996:302 [ref. 23179], Parin 1999:2175 [ref. 24786], Mundy 2005:287 [ref. 28379], Shakhovskoy & Parin 2010:560 [ref. 31020], Fourriére et al. 2016:456 [ref. 34668], Shakhovskoy 2018:57 [ref. 36429], Shakhovskoy & Parin 2022:9 [ref. 39123]). Current status: Valid as Cypselurus simus (Valenciennes 1847). Exocoetidae. Distribution: Central and eastern Pacific: Hawaiian Islands, Johnston Atoll, Tonga, Samoa, Cook Islands, French Polynesia, Easter Island, Revillagigedo Archipelago (Mexico). Possibly hybridized with C. callopterus. Habitat: marine.