Chaetodon austriacus Rüppell, 1836 Blacktail butterflyfish |
photo by
Field, R. |
Family: | Chaetodontidae (Butterflyfishes) | |||
Max. size: | 13 cm SL (male/unsexed) | |||
Environment: | reef-associated; marine; depth range 1 - 15 m, non-migratory | |||
Distribution: | Western Indian Ocean: Red Sea and Gulf of Aden. | |||
Diagnosis: | Dorsal spines (total): 13-13; Dorsal soft rays (total): 20-21; Anal spines: 3-3; Anal soft rays: 19-19; Vertebrae: 24-24. Axillary scale present. Color: Presence of band around head connected at the nape and throat. Mouth and chin area black while interorbital area with varying patterns of lines, dots and triangles. | |||
Biology: | Found in coral rich areas; juveniles confined to single coral heads (Ref. 9710). Territorial and usually in pairs. Mainly diurnal. Oviparous (Ref. 205). Form pairs during breeding (Ref. 205). | |||
IUCN Red List Status: | Least Concern (LC); Date assessed: 07 October 2009 Ref. (130435) | |||
Threat to humans: | harmless |