| Main Ref. | Ng, H.H. and M. Kottelat, 2000 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | circular |
| Dorsal head profile | more or less straight |
| Type of eyes | other (see remarks) |
| Type of mouth/snout | other (see remarks) |
| Position of mouth | terminal |
| Type of scales | |
| Diagnosis |
Body with mottled pattern of small irregular dark brownish-grey patches. Posterior edge of adipose fin pointed; length of adipose-fin base 19.9-22.8% SL; dorsal to adipose distance 23.8-26.7% SL. Body depth at anus 12.6-14.1% SL; eye small, dorsolaterally situated and subcutaneous, diameter 5.3-6.9% HL; 39-41 vertebrae, forked caudal fin (Ref. 37785). |
| 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 | 7 - 9 |
| Vertebrae | |
| preanal | |
| total | 39 - 41 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 1 - 1 |
| Soft-rays total | 6 - 6 |
| Adipose fin |
| Attributes | forked; asymmetric |
| Fins number | 1 |
| Spines total | |
| Soft-rays total | 13 - 14 |
| Pectoral | Attributes more or less normal |
| Spines 1 | |
| Soft-rays 7 - 8 | |
| Pelvics | Attributes more or less normal |
| Position abdominal behind origin of D1 | |
| Spines | |
| Soft-rays 5 - 5 |