| Main Ref. | Myers, R.F., 1991 |
| 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 |
Cryptic coloring ranges from green and olive to orange with blue spots (Ref. 3141). Caudal fin rays 9-10 (Ref. 1602). Description: Characterized further by having a pair of sharp "horns" about twice eye diameter in adult, longer in juvenile; "horns" extending anteriorly and slightly upward from front of carapace at level of upper edge of eye; posteriorly directed second pair of spines, one on each side of lower rear edge of carapace; very steep dorsal profile of snout, almost vertical; elongate caudal fin, 1.5-2.0 in SL, truncate margin (often ragged on trailing edge) (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 | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 8 - 9 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 8 - 9 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 10 - 11 | |
| Pelvics | Attributes suppressed/absent |
| Position | |
| Spines 0 | |
| Soft-rays 0 - 0 |