| Main Ref. | Hart, J.L., 1973 |
| Appearance refers to | Male; Female |
| Bones in OsteoBase |
| Specialized organs | no special organs |
| Different appearance | always different morphology between mature adults |
| Different colors | different colors during breeding season only |
| Remarks | Males have much larger and thicker preorbital cirri and darker ventral fins (Ref. 74407). Males have bright orange branchiostegal membrane, red-brown spots inside the mouth, and a brown anal fin with small yellowish spots that resembled eggs in color, shape, and size (Ref. 74407). |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Diagnosis |
Pelvic fins small. |
| Ease of Identification |
| Lateral Lines | 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 | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | extending over most of the back length |
| Fins number | 2 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 9 - 10 |
| Soft-rays total | 16 - 18 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 10 - 14 |
| Pectoral | Attributes very large , lobe-like |
| Spines 0 | |
| Soft-rays 13 | |
| Pelvics | Attributes aberrant |
| Position thoracic | |
| Spines 1 | |
| Soft-rays 3 - 3 |