| Family: |
Alestidae (African tetras) |
| Max. size: |
8 cm SL (male/unsexed) |
| Environment: |
pelagic; freshwater, potamodromous |
| Distribution: |
Africa: only from the Upper Volta basin in Burkina Faso (Ref. 2880, 3069, 81279). |
| Diagnosis: |
Anal spines: 0-0; Anal soft rays: 18-19. Diagnosis: parietal fontanella always present, also in adults, open; 5.5 scales above lateral line; 25-31 lateral line scales; 15-16 anal fin branched rays; 6/8 premaxillary teeth; 16-17 gill rakers on lower limb of first gill arch; gill rakers long (Ref. 2880, 81279).
Description: dorsal-fin origin at about the same level as pelvic-fin insertions; anal fin with 3 unbranched and 15-16 branched rays; six outer premaxillary teeth alined in a single row; equal jaws; sexual dimorphism in males as in Alestes species (Ref. 2880, 81279).
Colouration: Body with humeral spot and pre-caudal spot dark extending to hind margin of caudal-fin fork; body silvery, back dark yellowish , ventral zone white; fins except pectoral and ventrals (no color) yellow; these colours disappear after preservation, but dark band on sides from gill cover to caudal fin and broadening at about mid-length of body, becomes more apparent (Ref. 2880, 81279). |
| Biology: |
|
| IUCN Red List Status: |
Endangered (EN); Date assessed: 16 April 2019 (B2ab(iii)) Ref. (130435)
|
| Threat to humans: |
harmless |
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