cantrainei, Tylosurus Cocco [A.] 1833:18, Pl. (fig. 4) [Giornale di Scienze Lettere e Arti per La Sicilia v. 42 (no. 124); ref. 859] Messina, Sicily, Italy, Mediterranean Sea. No types known. Should be regarded as a synonym of Tylosurus imperialis (Rafinesque 1810) following ICZN Opinion 900; the name acus should not be used. Spelled cantraine on p. 18 and contrainei on p. 21, first reviser not researched, if none then we select contrainei -- the spelling used by current authors. •Synonym of Belone imperialis (Rafinesque 1810) -- (Mees 1962:38 [ref. 13277]). •Synonym of Tylosurus imperialis (Rafinesque 1810) -- (authors). •Synonym of Tylosurus acus (Lacepède 1803), subspecies imperialis (Rafinesque 1810) -- (Parin 1973:260 [ref. 7191], Collette & Parin 1990:596 [ref. 16473], Collette 2003:9, 10 [ref. 27306]). •Synonym of Tylosurus acus (Lacepède 1803) -- (Paxton et al. 2006:719 [ref. 28995]). •Synonym of Tylosurus imperialis (Rafinesque 1810). Current status: Synonym of Tylosurus imperialis (Rafinesque 1810). Belonidae. Habitat: marine.