| Main Ref. | Ottoni, F.P. and W.J.E.M. Costa, 2008 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Distinguished from other congeners by the combination of the following characters: caudal vertebrae 12; absence of mark on side of head; head with a depression near the snout in individuals above 3.0 cm SL; wide ectopterygoid; arms of epibranchial 2 with two long tubular processes; arm of epibranchial 1 long; 25 proximal radials on dorsal-fin base; 13-14 proximal radials on anal-fin base; pre-orbital depth 55.8-58.8% HL; interorbital width 43.9-47.9% HL; arms of vertical trunk bar 7 with the same width; dorsal-fin spines 16; dorsal-fin rays 10-11; anal-fin rays 8-9; scales on lower lateral line row 8-10; snout not robust; rib pairs 11; and pre-orbital depth 55.8-58.8% HL (Ref. 79631). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | 16 - 17 |
| Scale rows below lateral line | 8 - 10 |
| Scales around caudal peduncle | |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | 15 - 16 |
| on upper limb | 4 - 8 |
| total | |
| Vertebrae | |
| preanal | 14 - 14 |
| total | 26 - 26 |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 16 - 16 |
| Soft-rays total | 10 - 11 |
| Adipose fin | absent |
| Attributes | more or less truncate |
| Fins number | |
| Spines total | 7 - 8 |
| Soft-rays total | 8 - 9 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 13 - 15 | |
| Pelvics | Attributes more or less normal |
| Position abdominal | |
| Spines 1 | |
| Soft-rays 5 - 5 |