| Main Ref. | Collette, B.B. and C.E. Nauen, 1983 |
| 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 | fusiform / normal |
| Cross section | oval |
| 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 |
| Diagnosis |
Mouth moderately large. Laminae of olfactory rosette 21 to 39. Interpelvic process small and bifid. Swim bladder absent. Spleen large and prominent in ventral view. Liver with elongate left and right lobes and a short middle lobe. Body completely covered with very small scales posterior to the corselet. |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | absent |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | 23 - 27 |
| Vertebrae | |
| preanal | 22 - 24 |
| total | 42 - 46 |
| Attributes | no striking attributes |
| Fins number | 2 |
| Finlets No. | Dorsal 8 |
| Ventral 6 - 7 | |
| Spines total | 17 - 19 |
| Soft-rays total | |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | |
| Soft-rays total | 12 - 15 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 22 - 26 | |
| Pelvics | Attributes more or less normal |
| Position thoracic behind origin of D1 | |
| Spines | |
| Soft-rays |