micrurum, Syacium Ranzani [C.] 1842:16, Pl. 5 [Novi Commentarii Academiae Scientiarum Instituti Bononiensis v. 5; ref. 3606] Brazil. Holotype (unique): MZUB 948. See also Santos et al. 1997:131 [ref. 23531]. •Valid as Syacium micrurum Ranzani 1842 -- (Gutherz 1967:39 [ref. 23862], Fraser 1971:501 [ref. 21277], Hensley 1986:863 [ref. 5669], Robins & Ray 1986:292 [ref. 23100], Scott & Scott 1988:541 [ref. 25518], McAllister 1990:220 [ref. 14674], Aldebert et al. 1990:1035 [ref. 19526], Boschung 1992:176 [ref. 23239], Murakami & Amaoka 1992:74 [ref. 19779], Cervigón 1992:278 [ref. 23827], Bianchi & Carpenter in Bianchi et al. 1993:178 [ref. 25472], Andreata & Séret 1996:589 [ref. 16204] dated 1840, Cervigón 1996:65 [ref. 24489], Arruda 1997:119 [ref. 24952], Smith-Vaniz et al. 1999:341 [ref. 25013], Afonso et al. 1999:87 [ref. 25466], Keith et al. 2000:242 [ref. 24547], Saavedra-Díaz et al. 2000:307 [ref. 24565], Camargo & Isaac 2001:144 [ref. 27639], Munroe 2003:1921 [ref. 27118], Menezes & Figueiredo in Menezes et al. 2003:106 [ref. 27192], Nelson et al. 2004:180 [ref. 27807], McEachran & Fechhelm 2005:859 [ref. 28815], Page et al. 2013:186 [ref. 32708], see Wirtz et al. 2014:11 [ref. 33515], Spier et al. 2018:18 [ref. 36103], Carneiro et al. 2019:188 [ref. 37250], Robertson et al. 2020:160 [ref. 38098], Rotundo et al. in Marceniuk et al. 2021:388 [ref. 38945], Robertson et al. 2022:87 [ref. 39353], Carvalho-Filho 2023:272 [ref. 40480], Hoff et al. 2023:6 [ref. 40463]). Current status: Valid as Syacium micrurum Ranzani 1842. Cyclopsettidae. Distribution: Western Atlantic: South Carolina (U.S.A.) south to Santa Catarina (Brazil), including Gulf of Mexico and Caribbean Sea; southern-central Atlantic: ?Ascension Island. Habitat: marine.