| Distichodontidae (Distichodus) |
| 3.7 cm SL (male/unsexed) |
|
pelagic; freshwater; pH range: 7 - 7.80000019073486; dH range: 15, potamodromous |
| Africa: upper basin of Senegal River and Gambia River, Geba and Culufi River (Guinea Bissau), Waanje River (Sierra Leone), Niger River, including Benue River, Bandama River (Côte d'Ivoire), Comoé River in Côte d'Ivoire and Burkina Faso, Volta River and Pra River (Ghana), and Chari Logone Chari-Logone in Chad-Cameroon-Central African Republic (Ref. 2936, 86396). |
|
Diagnosis: snout and anal fin short; head length 22.9-31.8% SL; scale formula 5-6/42-45/-; 13-16 scales around caudal peduncle; 1.5-3 scales between anus and anal-fin origin; development lateral line variable with geographical region; pectoral fins not reaching to pelvic-fin bases; dorsal-fin origin distinctly ahead of pelvic-fin insertions; 8-12 anal fin branched rays; 11-14 dorsal fin branched rays; 10-13 pectoral fin branched rays; 8-10 pelvic fin branched rays; back usually uniformly brown (sometimes with cross-bars); dark band covering mid-lateral series of scales, and extending unto central caudal-fin rays (Ref. 2936, 86396).
Description: snout pointed; relatively short and compressed body; upper jaw with 10-14 bicuspid teeth; progressive decrease (from 16 to 13) in number of scales around caudal peduncle from west towards east; lateral line complete or almost complete in Gambia, Guinea Bissau and Sierra Leone (37-45 lateral line scales, 42-45 lateral stripe), but incomplete in Senegal, Niger-Bénoué, Chad, Bandama, Comoe, Volta and Pra (12-44 lateral line scales, 39-45 lateral stripe) (Ref. 2936, 86396).
Coloration: brown lateral stripe from snout to caudal fin base; in juveniles band composed of series small, rounded spots; yellow body, uniformly brown back (sometimes with about ten cross-bars), pink fins; dorsal fin sometimes marked with 2 or 3 transverse stripes (Ref. 2936, 86396). |
| Maximum TL was recorded at 4.6 cm (Ref. 7094). |
|
Least Concern (LC); Date assessed: 20 October 2019 Ref. (130435)
|
| harmless |
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