| Main Ref. | Costa, W.J.E.M., C.R.M. Feltrin, J.L.O. Mattos, P.F. Amorim and A.M. Katz, 2023 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | elongated |
| Cross section | oval |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
This species is distinguished from its congeners by the following set of characters: loss of pelvic fins and girdle; ten branchiostegal rays; six pectoral-fin rays; dorsal procurrent caudal-fin rays 13 or 14; filament on the extremity of the first pectoral-fin ray absent; anterior segment of the infraorbital latero-sensory canal absent; ventral procurrent caudal-fin rays 10 or 11; vertebrae 37; odontodes 12 opercular, 20-24 interopercular (Ref. 137687). |
| 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 |
| Ventral | |
| Spines total | |
| Soft-rays total | 11 - 11 |
| Adipose fin | absent |
| Attributes |
| Fins number | 1 |
| Spines total | |
| Soft-rays total | 9 - 9 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 6 - 6 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |