Main Ref. | De Weirdt, D., A. Getahun, S. Tshibwabwa and G.G. Teugels, 2007 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | no special organs |
Different appearance | males alike females |
Different colors | males alike females |
Remarks |
Striking features | none |
Body shape lateral | elongated |
Cross section | compressed |
Dorsal head profile | more or less straight |
Type of eyes | more or less normal |
Type of mouth/snout | more or less normal |
Position of mouth | terminal |
Type of scales | cycloid scales |
Diagnosis |
Diagnosis: body depth 3.9-6.2x and head length 3.4-4.7x SL; eye diameter 3.1-4.9x head length (Ref. 2940, 81282). Scale formula 9.5-11.5/48-64/4.5-6.5; 14-16 scales around caudal peduncle; 8 dorsal-fin branched rays; 13-15 anal-fin branched rays (Ref. 2940, 81282, 81639). Usually less than 15 vertical bars on sides; known from the large Nilo-Sudanese basins (Ref. 2940, 81282). Round spot on caudal peduncle (Ref. 81639). Description: mouth terminal, without barbels; scales with divergent striae; dorsal fin falciform, originating in advance of anal fin; caudal fin forked (Ref. 81639). D: III,8; A: III,13-15; P: 14-16; V: I,8 (Ref. 2940, 81282, 81639). Gill rakers short (Ref. 2940, 81282). Coloration: live specimens silvery with greyish green back; sides marked with 12-15 black vertical bars becoming progressively lower posteriorly (Ref. 2940, 81282, 81639). Intermediate spots or bars may be present in anterior part of body; orange-colored fins in life (Ref. 2940, 81282). |
Ease of Identification |
Lateral Lines | 1 Interrupted: No |
Scales on lateral line | 48 - 64 |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | 9 - 12 |
Scale rows below lateral line | 4 - 7 |
Scales around caudal peduncle | 14 - 16 |
Barbels | 0 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | 4 - 8 |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | 0 - 0 |
Soft-rays total | 11 - 11 |
Adipose fin | absent |
Attributes | forked; more or less normal |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 16 - 18 |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 14 - 16 | |
Pelvics | Attributes more or less normal |
Position abdominal before origin of D1 | |
Spines 0 | |
Soft-rays 9 - 9 |