| Main Ref. | Costa, W.J.E.M., V.M.. Azevedo-Santos, J.L.O. Mattos 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: pelvic fin and girdle absent; caudal fin margin aligned with the caudal peduncle, forming a spatula-like tail; dorsal 24 or 25 and ventral 20 procurrent caudal-fin rays; vertebrae 40; the dorsal-fin origin at the vertical between the centrum of the 24th vertebra; the anal-fin origin at vertical through the centrum of the 26th or 27th vertebra; and a vermiculate colour pattern on the flank (Ref. 137860). |
| 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 | 40 - 40 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 2 - 2 |
| Soft-rays total | 7 - 7 |
| Adipose fin | absent |
| Attributes |
| Fins number | 1 |
| Spines total | 2 - 2 |
| Soft-rays total | 5 - 5 |
| Pectoral | Attributes |
| Spines 1 | |
| Soft-rays 5 - 5 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |