| Family: |
Distichodontidae (Distichodus) |
| Max. size: |
3 cm SL (male/unsexed) |
| Environment: |
pelagic; freshwater |
| Distribution: |
Africa: Lower Guinea endemic, known from the Ntem, Mbini [=Woleu] and the Ogowe River basins (Ref. 81638). |
| Diagnosis: |
Dorsal spines (total): 0-0; Dorsal soft rays (total): 11-14; Anal spines: 0-0; Anal soft rays: 12-13. Diagnosis: distinct, large round spot on posterior portion of caudal peduncle and mid-basal caudal fin rays (Ref. 81638).
Description: body depth 0.24-0.30 SL and slightly laterally compressed; maxilla edentulous, premaxilla with 6-7, dentary with 7-8 bicuspid teeth; tip of pelvic fin reaching three quarters of distance to vent; body scales ctenoid and of moderate size; lateral line irregularly pored in smaller individuals, but complete in large specimens, with 55-61 scales; 5 scales between anal fin origin and lateral line; D: II-III,9-11; A: II,10-11 (Ref. 81638).
Coloration: preserved specimens pale yellow; dark chromatophores on dorsal portion of head and along anterior margin of maxilla; pale chromatophores overlying brain visible through transparent frontals and parietals; scales on dorsal portion of body posterior to base of dorsal fin outlined with dark chromatophores; large, dark, horizontally elongate spot on lateral surface of posterior portion of caudal peduncle and mid-basal portions of caudal rays (Ref. 81638). More details on fin coloration can be found in Ref. 81638. |
| Biology: |
|
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 16 February 2009 Ref. (130435)
|
| Threat to humans: |
harmless |
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