| Main Ref. | Allen, G.R., 1991 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | fusiform / normal |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Distinguished by the following characters: dorsal rays VIII - I,11-12; anal rays I,10-13; pectoral rays 14-16; scales in lateral series 38-39; transverse scale rows 12-13; predorsal scales 20-26; postdorsal scales 11-12; gill rakers on first arch 2-3 + 8-9 = 10-12; total vertebrae 33; snout relatively elongate, concave, its length about 3.7 in head length; body depth at pelvic fin origin 23.2-23.7% of SL; color in alcohol overall dark brown, nearly black except anus and genital papilla whitish; fins blackish; juveniles (under 35 mm SL) tan to whitish with dense covering of contracted melanophores giving overall dusky coloration, fins blackish (Ref. 26739). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| Scales in lateral series | 38 - 39 |
| 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 | 10 - 12 |
| Vertebrae | |
| preanal | 15 - 15 |
| total | 33 - 33 |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 9 - 9 |
| Soft-rays total | 11 - 12 |
| Adipose fin | absent |
| Attributes | more or less truncate |
| Fins number | 1 |
| Spines total | 1 - 1 |
| Soft-rays total | 10 - 13 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 14 - 16 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |