| Main Ref. | Joyeux, J.-C., J.L. Van Tassel and R.M. Macieira, 2009 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks | Males with a triangular, wide, flattened urogenital papilla. Females with a large papilla, slightly tapering (i.e. almost straight from base to top), not flattened, widely open at its top. The rim of the opening crenate and with numerous melanophores. Individuals of indeterminate sex, probably juveniles, with urogenital papilla similar to that of males but shorter, less flattened and rounder at top (Ref. 80455). |
| Striking features | |
| Body shape lateral | fusiform / normal |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
No scale anywhere on body; no basicaudal scales. A single short barbel on each side of head between the eye and upper jaw, directly below anterior nostril. A single median pair of short barbels on chin. No median barbel on snout. Cephalic head pores B'FH' + M'O' in small individuals, B'FH' + M'NO' in adults. D1 VII, D2 13(12-13), A 11(10-11), P 19(18-20). |
| 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 | 11 |
| total | 27 |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 7 |
| Soft-rays total | 12 - 13 |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total | 10 - 11 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 18 - 20 | |
| Pelvics | Attributes |
| Position | |
| Spines 1 | |
| Soft-rays 5 |