| Main Ref. | Myers, R.F., 1991 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | none |
| Body shape lateral | short and / or deep |
| Cross section | compressed |
| Dorsal head profile | clearly convex |
| Type of eyes | more or less normal |
| Type of mouth/snout | more or less normal |
| Position of mouth | terminal |
| Type of scales | ctenoid scales |
| Diagnosis |
Description: Adult stage is uniformly deep-blue black including all fins (Ref. 48636, 90102). Juvenile body pale blue, anterodorsal contour with broad yellow zone from snout to dorsal fin, caudal fin margin yellow. Transformation from colorful juvenile to uniformly black adult stage occurs at a size of 50 to 60 mm (Ref. 37816). Body depth 1.7-2.0 in SL (Ref. 90102). |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 15 - 18 |
| Pored lateral line scales | 15 - 18 |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | 5 - 8 |
| on upper limb | 14 - 16 |
| total | 19 - 21 |
| Vertebrae | |
| preanal | |
| total |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 13 - 13 |
| Soft-rays total | 13 - 15 |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | 2 - 2 |
| Soft-rays total | 12 - 15 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 17 - 19 | |
| Pelvics | Attributes more or less normal |
| Position thoracic beneath origin of D1 | |
| Spines 0 | |
| Soft-rays |