| Main Ref. | Román-Valencia, C. and D.K. Arcila-Mesa, 2009 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks | Males possess very reduced hooks at posterior end of anal, pelvic, pectoral, dorsal and caudal-fin rays. These hooks are situated from the fourth to last simple rays on anal fin, with eight or nine hooks on each ray; on all rays on pelvic, pectoral and dorsal fins, with eight to ten on each pelvic fin ray, five to six on each pectoral fin ray and six to seven on each dorsal fin-ray; and on the posterior end of the dorsal lobe and the medial part with two to six hooks on each ray of caudal fin (Ref. 83513). |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | clearly convex |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | terminal |
| Type of scales | |
| Diagnosis |
Diagnosed from all other species of the genus in having an elongate projection on fourth ventral neural arc near the first neural postzygoapophysis and a very reduced hooks on all fins and the posterior end of dorsal lobe of the caudal fin (Ref. 83513). Description: Dorsal fin iii,7; anal fin iii-iv,23-28; pectoral fin ii,9-11; pelvic fin ii,6 (Ref. 83513). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 41 - 43 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | 6 - 7 |
| Scale rows below lateral line | 5 - 6 |
| Scales around caudal peduncle | |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total | 39 - 41 |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 10 - 10 |
| Adipose fin |
| Attributes | forked |
| Fins number | |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 11 - 13 | |
| Pelvics | Attributes |
| Position abdominal before origin of D1 | |
| Spines | |
| Soft-rays 8 - 8 |