|
Chromis yamakawai Iwatsubo & Motomura, 2013 Northern yellow-spotted Chromis |
|
|
photo by
Motomura, H. |
| Family: | Pomacentridae (Damselfishes), subfamily: Chrominae | |||
| Max. size: | 13.08 cm SL (male/unsexed) | |||
| Environment: | reef-associated; marine; depth range 2 - 26 m | |||
| Distribution: | Western Pacific: Japan and the Philippines. | |||
| Diagnosis: | Dorsal spines (total): 13-14; Dorsal soft rays (total): 11-13; Anal spines: 2-2; Anal soft rays: 10-12. This species is distinguished by the following characters: D XIII-XIV,11-13 (mode XIII, 12); A II,10-12 (11); pectoral fin rays 17-21 (19); principal caudal fin rays 15; spiniform caudal fin rays 2; scale rows in longitudinal series 21-27 (26); tubed scales in lateral line 16-21 (19); scale rows above lateral line 3, below lateral line 9-10 (9); gill rakers 6-9 (7) + 20-25 (23) = 27-33 (30); smooth preopercular margin; caudal fin is deeply forked and without prolonged filaments; basal width of the pelvic fin axillary scale 1.7-2.8% of SL; basal width of scale between the pelvic fin bases is 2.2-3.9% of SL; distinct black blotch covering the upper two-thirds of pectoral fin base in juveniles and covering entire fin base in adults; absence of white spot at the end of dorsal fin base; no distinct markings on caudal peduncle; colour of caudal fin yellowish without dark band along each fin lobe (Ref. 94774). | |||
| Biology: | ||||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 18 August 2023 Ref. (130435) | |||
| Threat to humans: | harmless | |||