| Main Ref. | Robins, C.R., R.H. Robins and M.E. Brown, 2012 |
| 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 |
This species is characterized by the following: usual number of vertebrae, precaudal 16 (14-17), caudal 60-62 (59-64), total 76-78 (75-80); fin rays, dorsal 138-146 (134-148), anal 117-120 (111-123) pectoral 23-24 (21-25); pyloric caeca 4-5 (3-6), usually 3-4 in one whorl, 1-2 in second tier, sometimes 1 in a third tier; first gill arch with rudimentary rakers 3 (2-4) on the upper arm, 4 (sometimes 5) developed but short rakers on lower arm, rudiments anterior on the first arch vary from 1-10 (usually 5-8); total rakers 12-16 (9-18) with most of the variations due to the rudiments; dorsal-fin origin between neural spines 4-5 (26 specimens) or 3-4 (17 specimens) (Ref. 91765). |
| 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 | 5 - 13 |
| on upper limb | 3 - 3 |
| total | 9 - 16 |
| Vertebrae | |
| preanal | 14 - 17 |
| total | 75 - 80 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 134 - 148 |
| Adipose fin | absent |
| Attributes |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 111 - 123 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 21 - 25 | |
| Pelvics | Attributes |
| Position | |
| Spines 0 | |
| Soft-rays |