| Main Ref. | Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | none |
| Body shape lateral | elongated |
| 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 |
| Type of scales | |
| Diagnosis |
A small variably shaped patch of teeth on head of vomer. Pectoral fin extending beyond anal fin origin. Ventral light organ present. Color uniformly brown; fins dark-edged (Ref. 1371). Caudal fin rounded (Ref. 27363). |
| 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 | 1 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | 16 - 23 |
| Vertebrae | |
| preanal | |
| total | 52 - 54 |
| Attributes | extending over most of the back length |
| Fins number | 2notched No |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 59 - 70 |
| Adipose fin | absent |
| Attributes | other (see remark); more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 54 - 63 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 22 - 24 | |
| Pelvics | Attributes more or less normal |
| Position thoracic beneath origin of D1 | |
| Spines 0 | |
| Soft-rays 7 - 7 |