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Chaetodon nippon Steindachner & Döderlein, 1883 Japanese butterflyfish |
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photo by
Randall, J.E. |
| Family: | Chaetodontidae (Butterflyfishes) | |||
| Max. size: | 15 cm TL (male/unsexed) | |||
| Environment: | reef-associated; marine; depth range 5 - 30 m | |||
| Distribution: | Western Pacific: Japan and Korea to the Philippines. | |||
| Diagnosis: | Dorsal spines (total): 12-13; Dorsal soft rays (total): 18-20; Anal spines: 3-3; Anal soft rays: 15-16. Description: Head grey, body yellow or brassy at middle, anteriormost and posteriormost part of body, caudal peduncle, and dorsal and anal fins brownish, caudal fin yellow. Snout length 2.8-3.6 in HL. Body depth 1.6-1.8 in SL (Ref. 90102). | |||
| Biology: | Found in shallow rocky reefs. Spawning occurs in groups at sunset when water temperature is 23°C (Ref. 9710). 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 | |||