| Main Ref. | Myers, R.F., 1991 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | fusiform / normal |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Adults develop a convexly rounded prominent snout and unusually tall dorsal and anal fins. Side of body with vertical blue lines which break up into small blue spots dorsally and ventrally. A broad blue band extending from eye to front of rostral protuberance (Ref 9808). Description: Characterized further by dark grey body color; blue lips; can quickly switch on electric-blue markings; caudal peduncle with pair of bony plates,, each with large keel with forward projecting point; caudal fin with filamentous lobes; greatest depth of body 2.2 (subadults)-2.6 in SL (Ref. 90102). |
| 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 | 9 - 9 |
| on upper limb | 3 - 3 |
| total | 12 - 12 |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 6 - 6 |
| Soft-rays total | 26 - 27 |
| Adipose fin | absent |
| Attributes | more or less truncate; with dorsal and ventral filament |
| Fins number | 1 |
| Spines total | 3 - 3 |
| Soft-rays total | 27 - 29 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 17 - 19 | |
| Pelvics | Attributes |
| Position | |
| Spines 1 | |
| Soft-rays 3 - 3 |