| 主な参照 | Paugy, D., 2003 |
| Appearance refers to | オス; メス |
| Bones in OsteoBase |
| 専門の臓器 | no special organs |
| 異なる出現 | always different morphology between mature adults |
| 異なる色 | males alike females |
| 意見 | Pronounced sexual dimorphism affecting the shape of the anal fin. |
| 目立つ特徴 | none |
| 身体の側面 | fusiform / normal |
| 横断面 | oval |
| 後頭部の側面 | more or less straight |
| 目の種類 | more or less normal |
| 目/鼻の種類 | more or less normal |
| 口の場所 | terminal |
| Type of scales | cycloid scales |
| 診断 |
Diagnosis: at least 30 gill rakers on lower limb of first gill arch (30-41); 38-51 lateral line scales, with 7.5-9.5 above and 3.5 below; anal fin with three simple rays and 19-28 branched rays; dorsal-fin origin distinctly behind level of pelvic-fin insertions (Ref. 2759, 81279).
Description: external border of anal fin curves slightly and regularly concave in females; forms an anterior lobe in males with some rays clearly longer; well developed fontanel (Ref. 2759). 41-49 vertebrae (Ref. 2880, 81279).
Colouration: silver/greyish colored with blue-grey back and white belly, greyish fins, entirely covered with scales; Sudanese fishes have orange colors on the inferior lobe of the caudal fin; caudal fork finely edged with black; no precaudal or humeral spots (Ref. 2759, 2880, 81279). |
| Ease of Identification |
| 側線 | 1 中断された: No |
| 側線ラインの長さ | 38 - 51 |
| Pored lateral line scales | |
| Scales in lateral series | |
| 側線ラインより上の規模 | 7.5 - 9.5 |
| 側線ラインより下の規模 | 3.5 - 3.5 |
| 側線（尾鰭付近）周囲の規模 | |
| ひげ | 0 |
| 鰓(サメ/エイのみ) | |
| 鰓篩 | |
| 下部のヒレに | 30 - 41 |
| 上部のヒレの上に | |
| 合計 | |
| 脊つい | |
| 肛門前方の | |
| 合計 | 41 - 49 |
| 属性 | no striking attributes |
| 鰭の数 | 1 |
| 小離鰭の数 | Dorsal |
| Ventral | |
| 脊椎の合計 | 0 - 0 |
| 全体の鰭 | 10 - 10 |
| 脂びれ | present |
| 属性 | forked; more or less normal |
| 鰭の数 | 1 |
| 脊椎の合計 | 0 - 0 |
| 全体の鰭 | 22 - 31 |
| 胸の | 属性 more or less normal |
| 脊椎 | |
| 鰭 | |
| 骨盤の | 属性 more or less normal |
| 場所 abdominal before origin of D1 | |
| 脊椎 | |
| 鰭 |