| Main Ref. | Stauffer, J.R. Jr. and K.R. McKaye, 1986 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | |
| Cross section | compressed |
| Dorsal head profile | |
| Type of eyes | more or less normal |
| Type of mouth/snout | more or less normal |
| Position of mouth | |
| Type of scales | ctenoid scales |
| Diagnosis |
Diagnosis: laterally compressed body; hugh, upwardly directed mouth; eye relatively small; largest known member of the genus (Ref. 55949). Description: deep body; very large, steeply angled, upwardly pointing mouth; usually a markedly projecting lower jaw (Ref. 55949). Coloration: females and non-breeding males silvery and countershaded; large fish tend to have a purplish sheen, while smaller ones are more brownish; snout usually grey with purple sheen; ripe males with silvery flanks, but head, snout, dorsum, chin, belly and fins black; dorsal fin lappets white; 3-5 pale yellow or white eggspots in a single row on anal fin (Ref. 55949). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 34 - 34 |
| Pored lateral line scales | |
| 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 | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | |
| Adipose fin |
| Attributes | more or less truncate; more or less normal |
| Fins number | |
| Spines total | 3 - 3 |
| Soft-rays total | 10 - 11 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 12 - 13 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays 5 - 5 |