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Manonichthys polynemus (Fowler, 1931) Longfin dottyback |
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photo by
Randall, J.E. |
| Family: | Pseudochromidae (Dottybacks), subfamily: Pseudochrominae | |||
| Max. size: | 12 cm TL (male/unsexed) | |||
| Environment: | reef-associated; marine; depth range 2 - 50 m | |||
| Distribution: | Western Pacific: northeastern Indonesia and Palau. | |||
| Diagnosis: | Dorsal spines (total): 3-3; Dorsal soft rays (total): 27-29; Anal spines: 3-3; Anal soft rays: 14-15. Recognized by the long ventral fins, filamentous median fins, and yellow tear-mark below the eye. Found on steep slopes and walls with tubular sponges, usually in depths of about 20 m (Ref. 48635). Description: Characterized by having brown to grey brown color; scales with pale spots forming longitudinal rows; base of pelvic fins with orange blotch; dorsal and anal fins with black margins; female having pelvic and anal fins with more yellow color; anterior lateral-line scales 18-32; predorsal scales 17-19; depth of body 32.3-35.9 % of SL (Ref. 90102). | |||
| Biology: | An uncommon species that inhabits steep outer reef slopes, in areas with dense coral growth (Ref. 9710). Solitary, sometimes seen entering sponges (Ref 90102). | |||
| IUCN Red List Status: | Data deficient (DD); Date assessed: 10 March 2015 Ref. (130435) | |||
| Threat to humans: | harmless | |||