| Alestidae (African tetras) |
| 18.1 cm TL (male/unsexed) |
|
pelagic, |
| Africa: endemic to the Nipoué (Cess) River (Ref. 2880, 81279). |
|
Anal spines: 0-0; Anal soft rays: 14-16. Diagnosis: parietal fontanella absent in adults and porelike in juveniles, disappearing with growth; snout short, comprised over three times in head length; dorsal-fin origin at same level as, or scarcely behing, pelvic-fin insertions; head narrow; adults medium-sized; sexual dimorphism affecting anal-fin shape; no band or spots on sides; caudal fin broadly black-edged; 4.5 scales above lateral line; 22-27 lateral line scales; 11-13 anal fin branched rays; 8/8 premaxillary teeth; 19-20 gill rakers on lower part of first branchial arch (Ref. 2880, 81279).
Description: anal fin with 3 branched and 11-13 unbranched rays; equal jaws; premaxilla in two tooth rows, each with 8 teeth; in larger individuals, two teeth of the anterior row become dislodged, thus forming a second row (Ref. 2880, 81279).
Colouration: humeral spot; black precaudal blotch extending partly unto the median caudal-fin rays; silver body, grey back, pale belly. Gray or uncolored fins, black caudal fin margin (Ref. 2880, 81279). |
|
|
Near Threatened
(Ref. 96402)
|
| harmless |
|
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