| Main Ref. | Costa, W.J.E.M., 2003 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | short and / or deep |
| Cross section | compressed |
| Dorsal head profile | more or less straight |
| Type of eyes | more or less normal |
| Type of mouth/snout | more or less normal |
| Position of mouth | terminal |
| Type of scales | cycloid scales |
| Diagnosis |
Bars on anal and caudal fins of male; red distal bar on these. Anal fin of female long, spatulated, and long posterior process of occipital, terminating in narrow posterior extension. Males with short to minute filamentous rays on tip of dorsal fin; dorsal fin rounded to slightly pointed, reddish brown with light greenish yellow spots, 3-4 brown bars restricted to its posterobasal portion; anal fin rounded. Dorsal-fin rays 18-22 in male, 13-16 in female; anal-fin rays 22-23 in male, 18-20 in female; caudal-fin rays 23-24, caudal fin subtruncate in male, rounded in female (Ref. 49550). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 25 - 26 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | 12 - 12 |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | 11 - 11 |
| on upper limb | 3 - 3 |
| total | 14 - 14 |
| Vertebrae | |
| preanal | |
| total | 26 - 26 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 13 - 22 |
| Adipose fin |
| Attributes | other (see remark); more or less normal |
| Fins number | 1 |
| Spines total | |
| Soft-rays total | 18 - 23 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 12 - 13 | |
| Pelvics | Attributes more or less normal |
| Position abdominal before origin of D1 | |
| Spines | |
| Soft-rays 6 - 6 |