Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Nasinae
Etymology: Naso: Latin, nasus = nose (Ref. 45335).

Environment / Climate / Range Ecology

Marine; brackish; reef-associated; depth range 6 - 150 m (Ref. 30573), usually 10 - 137 m (Ref. 27115). Tropical; 25°C - 28°C (Ref. 27115), preferred ?; 24°N - 32°S, 30°E - 145°W (Ref. 57251)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-Pacific: Red Sea and East Africa (Ref. 9710), including the Mascarene Islands (Ref. 37792) to the Hawaiian, Marquesas and Ducie islands, north to southern Japan, south to Lord Howe Island.

Length at first maturity / Size / Weight / Age

Maturity: L_m 45.0 range ? - ? cm
Max length : 75.0 cm FL male/unsexed; (Ref. 1602); common length : 50.0 cm TL male/unsexed; (Ref. 30573)

Short description Morphology | Morphometrics

Dorsal spines (total): 6; Dorsal soft rays (total): 27-29; Anal spines: 2; Anal soft rays: 27 - 30. Almost fusiform, body grayish to greenish brown, paler below. Two weak immovable bucklers on each side of caudal peduncle. Without horn; short groove in front of eye. Yellowish brown preopercular margin. Over 25 cm with black tongue. Skin granulated or velvety. Teeth small and slender, close-set and pointed. Caudal fin emarginate in young.

Inhabits clear lagoon and seaward reef slopes (Ref. 9710, 48637). Benthopelagic (Ref. 58302). Usually seen in large schools (Ref. 90102). Mainly diurnal, it feeds on zooplankton such as crab larvae, arrow worms, pelagic tunicates, and occasionally filamentous red algae. The species is never poisonous (Ref. 4795).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Spawn in pairs (Ref. 240).

Main reference Upload your references | References | Coordinator : Randall, John E. | Collaborators

Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)

IUCN Red List Status (Ref. 115185)

Least Concern (LC)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless (Ref. 4887)

Human uses

Fisheries: commercial; gamefish: yes; aquarium: commercial

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Summary page | Point data | Common names | Photos

Internet sources

Naso hexacanthus (Bleeker, 1855)