| Main Ref. | Schwarzhans, W.W., M.M. Mincarone and B.T. Villarins, 2020 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | |
| Cross section | compressed |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
This species is distinguished by the following characters: moderately slender with flat dorsal head profile leading up to ’humpback’ structure at beginning of first dorsal fin; snout pointed, inferior, steeply inclined; pectoral-fin rays 15-16, its length 23.6-29.7% SL; A II+9, first anal-fin pterygiophore moderately long, with broad hollow base and straight to slightly backward bent tip; vomer V-shaped with 2-3 rows of granular teeth and 0-1 longer tooth near sides of base; palatine narrow, with 1-2 rows of granular teeth; eye diameter 13.1-16.9% SL; snout length 8.2-11.3% SL; gill rakers 27-31; pseudobranchial filaments 15-23; many longitudinal ridges on preopercular lobe; inner edge of preopercle with 3-6 denticles; otolith compressed (OL:OH = 1.3-1.35); maximum length not exceeding 8.6 cm SL (Ref. 122020). |
| 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 | 27 - 31 |
| Vertebrae | |
| preanal | 10 - 10 |
| total | 25 - 25 |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 10 - 10 |
| Soft-rays total | 10 - 10 |
| Adipose fin |
| Attributes |
| Fins number | 1 |
| Spines total | 2 - 2 |
| Soft-rays total | 9 - 9 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 16 - 16 | |
| Pelvics | Attributes |
| Position | |
| Spines 1 | |
| Soft-rays 5 - 5 |