| Main Ref. | Ng, H.H. and W.J. Rainboth, 2005 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | sub-terminal/inferior |
| Type of scales | |
| Diagnosis |
Overall dark-colored body devoid of lighter-colored markings. Length of adipose-fin base 15.1-19.5% SL. Body depth at anus 14.1-16.6% SL. Caudal peduncle depth 10.1-10.5-% SL. Interorbital distance 41.7-45.5% HL. Lack of suborbital depression. Ventralmost extent of gill opening one-third distance from ventral midline of body to base of pectoral spine. Absence of serration on posterior edge of pectoral spine. Truncate caudal fin (Ref. 56231). Description: Dorsal-fin rays II,4,i; anal-fin rays iii,5,ii, iii,6,i; pectoral-fin rays I,6; pelvic-fin rays i,5 (Ref. 56231). |
| 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 | 8 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | 6 - 6 |
| Vertebrae | |
| preanal | |
| total | 32 - 32 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 2 - 2 |
| Soft-rays total | 5 - 5 |
| Adipose fin | present |
| Attributes | more or less truncate |
| Fins number | |
| Spines total | |
| Soft-rays total | 10 - 10 |
| Pectoral | Attributes |
| Spines 1 | |
| Soft-rays 6 - 6 | |
| Pelvics | Attributes |
| Position abdominal behind origin of D1 | |
| Spines | |
| Soft-rays 6 - 6 |