6011 Acanthurus nigricans (Linnaeus, 1758) Acanthuridae Surgeonfishes, tangs, unicornfishes Acanthurinae Acanthuriformes Teleostei Whitecheek surgeonfish Eastern Indian Ocean: known only from Cocos-Keeling Islands and Christmas Island. Pacific Ocean: Ryukyu Islands and Great Barrier Reef to the Hawaiian Islands and French Polynesia (excluding Rapa). This species has crossed the Eastern Pacific Barrier to the Revillagigedo Islands, Cocos Island, Galapagos Islands, and the coast of Mexico. UBC 580383 19 N 111 W Acanthurus glaucopareius UBC 580625 19 N 111 W Acanthurus glaucopareius UBC 590261 18 N 111 W Acanthurus glaucopareius UBC 630062 18 N 110 W Acanthurus glaucopareius UBC 630057 18 N 110 W Acanthurus aliala UBC 630057 18 N 110 W Acanthurus glaucopareius UBC 640227 5 N 87 W Acanthurus glaucopareius UBC 640223 5 N 87 W Acanthurus glaucopareius UBC 590258 18 N 110 W Acanthurus glaucopareius UBC 590257 18 N 114 W Acanthurus glaucopareius UBC 590257 18 N 114 W Acanthurus glaucopareius UBC 590256 18 N 114 W Acanthurus glaucopareius UBC 590251 18 N 114 W Acanthurus glaucopareius UBC 590248 18 N 114 W Acanthurus glaucopareius UBC 570149 18 N 110 W Acanthurus glaucopareius UBC 570156 18 N 110 W Acanthurus glaucopareius UBC 570156 18 N 110 W Acanthurus glaucopareius UBC 570154 18 N 110 W Acanthurus glaucopareius UBC 560364 5 N 87 W Acanthurus glaucopareius UBC 560329 5 N 87 W Acanthurus glaucopareius 15 N 124 E Acanthurus nigricans 51.3 m AMNH 9429 1927 Acanthurus nigricans AMNH 9430 1927 Acanthurus nigricans GCRL 4073 1969 Acanthurus nigricans 1 - 1 m GCRL 4199 1969 Acanthurus nigricans 7 - 10 m AMNH 50969 1978 Acanthurus glaucopareius AMNH 50982 1978 Acanthurus glaucopareius AMNH 50987 1978 Acanthurus glaucopareius AMNH 50997 1978 Acanthurus glaucopareius AMNH 50808 1981 Acanthurus glaucopareius FB 280016 0 S 91 W 1982 Acanthurus glaucopareius FB 280013 0 S 90 W 1982 Acanthurus glaucopareius FB 280007 0 S 90 W 1982 Acanthurus glaucopareius FB 280006 0 S 90 W 1982 Acanthurus glaucopareius CICIMAR-IPN 703 1984 Acanthurus nigricans 3 m FISH 386922 5 S 150 E 1994 Acanthurus nigricans 15 N 124 E 2014 Acanthurus nigricans 53.8 m