| Main Ref. | Costa, W.J.E.M., 1998 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | fusiform / normal |
| 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 |
Short alveolar arm of premaxilla; very narrow and short ventral process of angulo-articular; ventroposterior part of mesopterygoid overlapping dorsal border of quadrate; truncate dorsal portion of opercle. Absence of gill-rakers denticles on the first branchial arch. Narrow lateral process of sphenotic. Ventral opercular neuromasts 5-6. Deepest body point on vertical through an area between pectoral and pelvic-fin bases. Dorsal-fin rays in males, 15-18, 14-17 in females; anal-fin rays 17-20 in males, 17-20 in females; caudal-fin rays 26-29. Caudal and pectoral fins rounded. Supraorbital neuromasts 24-28 (Ref. 40938). |
| Ease of Identification | Likely to be confused with closely related species. |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 31 - 32 |
| Pored lateral line scales | |
| Scales in lateral series | 10 - 12 |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | 16 - 18 |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | 8 - 8 |
| on upper limb | 2 - 2 |
| total | 10 - 10 |
| Vertebrae | |
| preanal | |
| total | 32 - 33 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 14 - 17 |
| Soft-rays total | |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 16 - 18 |
| Soft-rays total |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 12 - 13 | |
| Pelvics | Attributes more or less normal |
| Position thoracic before origin of D1 | |
| Spines | |
| Soft-rays 6 |