| Main Ref. | Myers, R.F., 1991 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | short and / or deep |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Can adopt three basic color patterns: mottled grey and brown, dark brown, or grey with a network of close-set polygonal spots. All have a small white spot at the rear base of the second dorsal fin and sometimes the anal fin. Description: Characterized further by first dorsal spine nearly equal to length of snout, above front half of eye and partially fitting into groove on back; side of caudal peduncle with dense patch of setae in adult male; concave dorsal profile of snout; rounded caudal fin; depth of body at origin of anal fin 2.1-2.3 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 | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 2 - 2 |
| Soft-rays total | 32 - 36 |
| Adipose fin | absent |
| Attributes |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 29 - 32 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 13 - 15 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |