| Main Ref. | Kottelat, M., 1990 |
| Appearance refers to | Male; Female |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | always different morphology between mature adults |
| Different colors | always different colors between mature adults |
| Remarks | Males have short filamentous dorsal and anal fin rays, 2-5 large external conical teeth on each jaws at the corner of the mouth. The genital papilla of the male forms a short tube, broader than long while the female genital papilla forms a bilobed structure. |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Distinguished from all other members of the genus by the combination of the following characters: 41-47 vertical rows of scales; 8-9 dorsal rays; 20-25 anal rays; and the distinctive color pattern of males (Ref. 26687). Description: Males have a greyish brown head and body, with black vertically elongate blotches forming a more or less regular row along the axial stripe. Few smaller blotches irregularly distributed on body. Eye blue. Dorsal, anal, caudal and pelvic fins blackish and pectoral fin hyaline. Females have lighter brown head and body with smaller, less conspicuous black or without blotches. Fins are greyish to hyaline (Ref 26687). |
| 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 | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 8 - 9 |
| Adipose fin |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | |
| Soft-rays total | 20 - 25 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 11 - 12 | |
| Pelvics | Attributes more or less normal |
| Position abdominal before origin of D1 | |
| Spines | |
| Soft-rays 6 - 6 |