| Main Ref. | Haedrich, R.L., 1986 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | short and / or deep |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Diagnosis |
Small specimens mottled or banded; adult uniformly black (Ref. 4412). Body moderately deep. Predorsal scales extending forward to about level of mideye. Snout deep and evenly rounded (Ref 9834). Description: Characterized further by having deeply forked caudal fin with pointed lobes; jaws terminal; small teeth, conical, mostly uniserial (Ref. 90102). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 55 - 62 |
| 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 | 16 - 18 |
| on upper limb | 8 - 8 |
| total | 24 - 26 |
| Vertebrae | |
| preanal | |
| total | 31 - 31 |
| Attributes | |
| Fins number | 1notched No |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 11 - 13 |
| Soft-rays total | 18 - 22 |
| Adipose fin | absent |
| Attributes |
| Fins number | 1 |
| Spines total | 3 - 3 |
| Soft-rays total | 21 - 23 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 18 - 20 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |