Acanthurus albimento Carpenter, Williams & Santos, 2017
Whitechin surgeonfish
Acanthurus albimento
photo by Williams, J.T.

Family:  Acanthuridae (Surgeonfishes, tangs, unicornfishes), subfamily: Acanthurinae
Max. size:  25.24 cm SL (male/unsexed)
Environment:  reef-associated; marine
Distribution:  Western Pacific: Philippines.
Diagnosis:  Dorsal spines (total): 9-9; Dorsal soft rays (total): 26-28; Anal spines: 3-3; Anal soft rays: 25-27; Vertebrae: 13-13. This species is distinguished by the following characters: D IX,26-28; A III,25-27; pectoral-fin rays 17; posterior gill rakers 20-22; 16-18 teeth in upper jaw, 18-20 teeth in lower jaw; body depth 1.95-2.0 in SL; snout 4.35-4.74 in SL; large adults' forehead with pronounced convexity; head length 3.45-3.7 in SL; 9th dorsal-fin spine 1.65-1.85 in HL; caudal-spine length 3.85-5.15 in HL; caudal fin is strongly lunate in adults, caudal concavity 3.9-5.6 in SL. Colouration when fresh: lips brown, the upper lip edged narrowly with whitish merging ventrally with distinct white chin band; head brown with numerous distinct, iridescent, blue, wavy stripes, extending as wavy stripes behind and below the opercle; indistinct orangish streak in front of eye extending behind the eye to behind the upper edge of the opercle; iridescent blue stripes present on the base of pectoral fin, outer surface of each pectoral ray iridescent blue with posterior fourth of fin darker brown; body brown with numerous narrow alternating dark and bluish wavy stripes; the dorsal fin with a distinct rust-orange stripe at base; grey caudal spine, its socket is covered with a black oval spot with a whitish border; whitish base of caudal fin, caudal fin with narrow, vertical, light-bluish lines centrally and the longitudinal bluish lines covering upper and lower rays (Ref. 114728).
Biology:  Depth of capture of the specimens is unknown (Ref. 114728).
IUCN Red List Status: Data deficient (DD); Date assessed: 01 March 2017 Ref. (123251)
Threat to humans:  harmless
Country info:   

Entered by: Capuli, Estelita Emily - 16.03.17
Modified by: Torres, Armi G. - 19.10.17

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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