Main Ref. | Lévêque, C., 2003 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | no special organs |
Different appearance | males alike females |
Different colors | males alike females |
Remarks |
Striking features | striking type of mouth |
Body shape lateral | fusiform / normal |
Cross section | |
Dorsal head profile | clearly concave |
Type of eyes | more or less normal |
Type of mouth/snout | more or less normal |
Position of mouth | sub-terminal/inferior |
Type of scales | cycloid scales |
Diagnosis |
Diagnosis: dorsal profile straight to slightly arched; rostral lobe poorly developed, its free margin smooth; margin of upper lip papillose, its inner surface smooth; body depth 2.5-3.2x SL; depth of caudal peduncle 0.8-1.2x its length; 36-60 (50-150 mm) and 52-65 (150-250 mm) gill rakers; scale formula 5.5-7.5/36-41/6.5-7.5; 3.5-4.5 scales between lateral line and pelvic-fin base; 16 scales around caudal peduncle; 12-15 dorsal fin branched rays; body silvery in life; widely distributed in the Sudanese region (Ref. 2940, 81282). Description: large species; inner surface of lips without transverse folds; snout with discrete tubercles; short barbel at corners of mouth; outer margin of dorsal fin straight or slightly convex; D:IV,12-15; A:III,5; P:17-18; V:9 (Ref. 2940, 81282). Coloration: general appearance rather pale; silvery in life, back greenish to greyish, belly white; scale-centres pink, marginal scale areas set with melanophores forming undulating longitudinal lines, particularly well visible in juveniles; pectoral, pelvic and anal fins pink, dorsal and caudal fins greyish, with pinkish rays (Ref. 2940, 81282). |
Ease of Identification |
Lateral Lines | 1 Interrupted: No |
Scales on lateral line | 36 - 41 |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | 5 - 8 |
Scale rows below lateral line | 6 - 8 |
Scales around caudal peduncle | 16 - 16 |
Barbels | 0 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | 36 - 65 |
Vertebrae | |
preanal | |
total |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | 16 - 19 |
Adipose fin | absent |
Attributes | forked; more or less normal |
Fins number | 1 |
Spines total | |
Soft-rays total | 8 - 11 |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 17 - 18 | |
Pelvics | Attributes more or less normal |
Position abdominal behind origin of D1 | |
Spines 0 | |
Soft-rays 9 - 9 |