New records of non-indigenous fishes (Perciformes and Tetraodontiformes) from the Canary Islands (north-eastern Atlantic) Author Triay-Portella, Raül Author Pajuelo, José G. Author Manent, Pablo Author Espino, Fernando Author Ruiz-Díaz, Raquel Author Lorenzo, José M. Author González, José A. text Cybium 2015 39 3 163 174 journal article 2101-0315 Acanthurus bahianus Castelnau, 1855 , ocean surgeon Material examined. – MMF 44367, one resting female, 168 mm TL, 131 mm SL, El Altillo, 28°11’N 15°33’W , 4 m , 8 Aug. 2014 , reef platform ( Fig. 2G ). Sightings and catches . – Once, n = 1, same locality ( Fig. 3 ). Remarks. – A tropical reef-associated species ( Robins and Ray, 1986 ), living from 2 ( Baensch and Debelius, 1997 ) to 40 m of depth ( Desoutter, 1990 ), usually at 2-25 m , between 21 and 25°C ( Baensch and Debelius, 1997 ). Inhabits shallow bottoms with coral or rocky formations ( Cervigón, 1994 ). Usually occurs in groups of five or more individuals. Mainly diurnal. Feeds on algae ( Robins and Ray, 1986 ). Maximum length published is 381 mm SL ( Humann, 1994 ). An amphi-Atlantic species. West Atlantic: Massachusetts , USA and Bermuda southward to southern Brazil ( Froese and Pauly, 2015 , Anderson et al. , 2015 ). In the mid-Atlantic: Ascension ( Cadenat and Marchal, 1963 ; Wirtz et al. , 2014 ) and St. Helena Islands ( Desoutter, 1990 ). East Atlantic: off Angola ( Smith, 1997 ). This is the first record for A. bahianus from the Canary Islands .