| Main Ref. | Nakayama, N., 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: no large, scaly, tubercular swelling anterior to the anus; pelvic-fin rays 11-12; without enlarged scutes at snout tip; absence of open pores along the cephalic sensory canals; mandibular rami scaled posteriorly; naked branchiostegal membranes; body scales covered with long, moderately erect, needle-like spinules densely scattered over exposed portion; D1 II,9-10; pectoral-fin rays i21-i26; inner gill rakers on first arch 9-11; upper-jaw length 30-35% HL. Colouration: first dorsal fin uniformly black and oral cavity blackish (Ref. 123356). |
| 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 | |
| total | 9 - 11 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 2 - 2 |
| Soft-rays total | 9 - 10 |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes |
| Spines | |
| Soft-rays | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays 11 - 12 |