| Main Ref. | Higgins, R.P., 1983 |
| Appearance refers to |
| specialized organs | |
| different appearance | |
| different colors | |
| remarks |
| Striking features | |
| Body shape lateral | |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Diagnosis | Mid-dorsal spines: on segment 6, 8, and 10; uniformly increasing in length posteriorly. Lateral spines: on segment 4, 7 to 11. Adhesive glands present at the base of L-4 and L-7. Lateral accessory spine: with adhesive gland at base adjacent dorsally to L-10. Lateral terminal spines: long, 104 to 176 um, 47.6 to 80.1% of trunk length. Cuticular perforation sites: sparse, in a distinct pattern. Muscle scars: prominent dorsolateral and ventrolateral on segment 4. Lateral terminal accessory spines absent in males, instead with 3 pairs of penile spines. |
| 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 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes |
| spines | |
| soft-rays | |
| Pelvics | Attributes |
| Position | |
| spines | |
| soft-rays |