| Main Ref. | Myers, R.F., 1991 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | striking type of mouth |
| Body shape lateral | short and / or deep |
| Cross section | compressed |
| Dorsal head profile | clearly concave |
| 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: Changes color when frightened or when observed at night. The dorsal portion of the body turns black except for two white patches (Ref. 1602). Snout length 2.6-3.3 in HL. Body depth 1.6-1.8 in SL (Ref. 90102). |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 33 - 39 |
| Pored lateral line scales | 29 - 36 |
| Scales in lateral series | |
| Scale rows above lateral line | 6 - 7 |
| Scale rows below lateral line | 15 - 17 |
| Scales around caudal peduncle | |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | 13 - 16 |
| Vertebrae | |
| preanal | |
| total |
| Attributes | extending over most of the back length |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 12 - 13 |
| Soft-rays total | 18 - 21 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 3 - 3 |
| Soft-rays total | 16 - 18 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 13 - 16 | |
| Pelvics | Attributes more or less normal |
| Position thoracic beneath origin of D1 | |
| Spines 1 | |
| Soft-rays 5 - 5 |