| Main Ref. | Hibino, Y., S. Kimura, K. Hoshino, K. Hatooka and J.E. McCosker, 2012 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | eel-like |
| Cross section | circular |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
This species is distinguished by the following set of characters: 2 infraorbital pores found at the postorbital area; median ventral groove on the snout absent; acute snout; rictus of mouth slightly posterior to a vertical line through the posterior margin of the eye; pointed conical teeth on upper jaw and vomer, arranged biserially on upper jaw, uniserially on vomer; dorsal-fin origin posterior to a vertical line through the anus, horizontal distance between the origin and the vertical line 13-55% HL; tail 54-58% TL; total vertebrae 118-135, predorsal 51-57 and preanal 47-52; mean vertebral formula (MVF) 53.9-50.0-128.6 (Ref. 92899). |
| 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 | |
| Vertebrae | |
| preanal | 47 - 52 |
| total | 118 - 135 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes absent |
| Spines 0 | |
| Soft-rays 0 - 0 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |