hamiltoni, Brachioptilon Hamilton [F.] & Newman [E.] in Newman 1849:2358 [The Zoologist: a Popular Miscellany of Natural History v. 7 (for 1849); ref. 3169] Gulf of California, Mexico. No types known. Description based on account by Hamilton, Newman provided name; therefore we treat authorship as Hamilton & Newman. •May be a synonym of Manta birostris (Walbaum 1792) -- (Compagno 1999:498 [ref. 25589]). •See Chirichigno F. & Vélez D. 1998:73 [ref. 24555]. •Synonym of Manta birostris (Walbaum 1792) -- (Mecklenburg et al. 2002:108 [ref. 25968], Marshall et al. 2009:4 [ref. 30599], Del Moral-Flores et al. 2016:135 [ref. 34398] with author as Newman). •Synonym of Mobula birostris (Walbaum 1792) -- (Jones et al. 2020:302 [ref. 37610]). Current status: Synonym of Mobula birostris (Walbaum 1792). Mobulidae. Habitat: marine.