| Main Ref. | Fernández, L., E.A. Sanabria and L.B. Quiroga, 2013 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Caudal peduncle length 22.0-23.9% SL; caudal peduncle expanded posteriorly toward caudal fin; absence of pelvic girdle and pelvic fin; 9-10 dorsal-fin rays (5-6 branched rays); 7 pectoral-fin rays; 38 vertebrae total, 9 opercular odontodes, 20 interopercular odontodes; wide supraorbital tendon bone (Ref. 93164); and the insertion point of the first proximal dorsal-fin pterygiophore posterior to the neural spine of vertebra 22 (Ref. 95056). |
| 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 | 38 - 38 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 9 - 10 |
| Adipose fin | absent |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 7 - 7 | |
| Pelvics | Attributes suppressed/absent |
| Position absent | |
| Spines | |
| Soft-rays |