| Main Ref. | Smith, M.M. and P.C. Heemstra, 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 | |
| Type of scales | |
| Diagnosis |
Narrow white margin round caudal fin; live specimens bluish or violet (Ref. 4420). Description: Characterized further by dark greyish-black head and body color; fins jet black in color; base of dorsal and anal fins with white band; front of eye with deep groove; corner of mouth to lower end of gill opening with 27-31 head scale rows; body scale rows from upper end of gill opening to caudal fin base 60-70; not prominent longitudinal ridges following scale rows of posterior body; truncate to slightly rounded caudal fin (Ref. 90102). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| Scales in lateral series | 60 - 70 |
| 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 | |
| Fins number | 2 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 3 - 3 |
| Soft-rays total | 30 - 35 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | |
| Spines total | 0 - 0 |
| Soft-rays total | 27 - 30 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 14 - 16 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |