obscurus, Squalus Lesueur [C. A.] 1818:223, Pl. 9 [Journal of the Academy of Natural Sciences, Philadelphia v. 1 (pt 2); ref. 2735] No locality (= East coast of U.S.A.). No types known. Volume contains two plates labeled IX; S. obscurus is found on the second plate IX. •Valid as Carcharhinus obscurus (Lesueur 1818) -- (Compagno 1973:25 [ref. 7163], Garrick 1982:120 [ref. 5454], Eschmeyer & Herald 1983:39 [ref. 9277], Branstetter in Whitehead et al. 1984:108 [ref. 13675], Compagno 1984:489 [ref. 6846], Nakaya in Masuda et al. 1984:6 [ref. 6441], Bass et al. 1986:75 [ref. 5638], Robins & Ray 1986:27 [ref. 23100], Capapé 1987:22 [ref. 39326], Allen & Swainston 1988:22 [ref. 25477], Scott & Scott 1988:25 [ref. 25518], Gubanov & Timoxin 1989:224 [ref. 36138], Paxton et al. 1989:79 [ref. 12442], McAllister 1990:32 [ref. 14674], Springer 1990:106 [ref. 19320], Randall et al. 1990:21 [ref. 15987], Boschung 1992:22 [ref. 23239], Cervigón 1992:173 [ref. 23827], Allen & Robertson 1994:23 [ref. 22193], Gomon et al. 1994:123 [ref. 22532], Last & Stevens 1994:252 [ref. 23873], Compagno et al. in Fischer et al. 1995:678 [ref. 22829], Allen 1997:42 [ref. 23977], De La Cruz Agüero et al. 1997:28 [ref. 24545], Murdy et al. 1997:31 [ref. 23144], Arruda 1997:18 [ref. 24952], Kuiter 1997:14 [ref. 25488], Randall et al. 1997:21 [ref. 25919], Compagno & Niem 1998:1344 [ref. 23787], McEachran & Fechhelm 1998:82 [ref. 23897], Smith-Vaniz et al. 1999:115 [ref. 25013], Johnson 1999:719 [ref. 25471], Compagno 1999:483 [ref. 25589], Menezes & Marín 1999:1 [ref. 26473], Musick et al. 2000:8 [ref. 24959], Nakabo 2000:139 [ref. 25086], Compagno in Randall & Lim 2000:580 [ref. 25122], Laboute & Grandperrin 2000:93 [ref. 25191], Lea & Rosenblatt 2000:119 [ref. 25206], Schmitter-Soto et al. 2000:146 [ref. 27754], Grace 2001:28 [ref. 25694], Hutchins 2001:14 [ref. 25847], Soto 2001:64, 79 [ref. 26637], Camargo & Isaac 2001:139 [ref. 27639], Bilecenoğlu et al. 2002:173 [ref. 26753], Branstetter in Collette & Klein-MacPhee 2002:42 [ref. 26158], Nakabo 2002:139 [ref. 26001], Compagno 2003:485 [ref. 26984], Gadig & Gomes in Menezes et al. 2003:23 [ref. 27192], Manilo & Bogorodsky 2003:S92 [ref. 27377], Bunkley-Williams & Williams 2004:96 [ref. 27795], Espinosa Pérez et al. 2004:57 [ref. 27705], Nelson et al. 2004:53 [ref. 27807], Love et al. 2005:8 [ref. 37547], Golani 2005:10 [ref. 37112], Mundy 2005:91 [ref. 28379], Hoese et al. 2006:102 [ref. 29001], White 2008:70 [ref. 30617], Fricke et al. 2011:346 [ref. 31242], Voigt & Weber 2011:84 [ref. 31424], Castro 2011:444 [ref. 31457], White 2012:3 [ref. 31843], Naylor et al. 2012:22 [ref. 32267] see remarks, Fricke et al. 2013:247 [32706], Page et al. 2013:51 [ref. 32708], Wirtz et al. 2013:115 [ref. 32972], Larson et al. 2013:10 [ref. 32988], Ebert et al. 2013:333 [ref. 33045], Wirtz et al. 2014:2 [ref. 33516], Duffy 2015:103 [ref. 34217], Pinheiro et al. 2015:3 [ref. 34324], Del Moral-Flores et al. 2016:93 [ref. 34398], Weigmann 2016:22 [ref. 34211], Compagno 2016:1313 [ref. 34544], Fourriére et al. 2016:453 [ref. 34668], Del Moral-Flores et al. 2016:605 [ref. 34923], Nión et al. 2016:20 [ref. 35565], Kells et al. 2016:70 [ref. 35888], Ebert et al. 2017:56 [ref. 35618], White et al. 2017:156 [ref. 35860], Biscoito et al. 2018:467 [ref. 37562], Ehemann et al. 2018:21 [ref. 36194], Fricke et al. 2018:14 [ref. 35805], Golani & Fricke 2018:11 [ref. 36273], Spier et al. 2018:4 [ref. 36103], White & Ko'ou 2018:36 [ref. 35922], Almeida & Biscoito 2019:83 [ref. 37302], Carneiro et al. 2019:27 [ref. 37250], Ehemann et al. 2019:[4] [ref. 36861], Hoschke et al. 2019:153[ref. 36626], Lee et al. 2019:697 [ref. 37230], Reiner 2019:34 [ref. 38139], Bariche & Fricke 2020:9 [ref. 37515], Calle-Morán et al. 2020:243 [ref. 37881], Kabasakal 2020:93 [ref. 37952], Kim et al. 2020:39 [ref. 39118], Serena et al. 2020:502 [ref. 37963], Bessudo et al. 2021:[3] 1771 [ref. 39107], Ebert et al. 2021:65 [ref. 38234], Golani 2021:8 [ref. 38303], González-Acosta et al. 2021:6 [ref. 38361], Kovačić et al. 2021:9 [ref. 39014], Love et al. 2021:18 [ref. 39279], Barone et al. 2022:17 [ref. 39527], Blanco-Parra & Niño-Torres 2022:Correction, p. 3 [ref. 38986], Fermon et al. 2022:96 [ref. 39448], Moazzam & Osmany 2022:209 [ref. 40666], Winton & Ebert 2022:527 [ref. 39667], Carvalho-Filho 2023:306 [ref. 40480], Castillo Domínguez et al. 2023:5 [ref. 40663], Page et al. 2023:40 [ref. 40505], Siccha-Ramirez et al. 2023:50 [ref. 40816], Gadig et al. 2024:46 [ref. 40775]). Current status: Valid as Carcharhinus obscurus (Lesueur 1818). Carcharhinidae. Distribution: Circumglobal in tropical and subtropical seas (including Gulf of Mexico, Caribbean Sea, Mediterranean Sea, Red Sea, Sea of Japan, Gulf of California/Mexico). Habitat: brackish, marine.