| Main Ref. | Plamoottil, M. and K. Vineeth, 2022 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | |
| Cross section | oval |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
from all its relative species in having a deeper and wider body, 37 lateral line scales, 6.5 scales between lateral line and dorsal fin and 4.5 scales between lateral line and anal fin. This species is distinguished from all its congeners (except O. augraoides) by the following characters: with a distinct mid lateral black line, a black stripe on the middle of anal fin and a large distinct black blotch on dorsal fin (Ref. 132418), |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 38 - 38 |
| 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 | 11 - 11 |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total | 5 - 5 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 13 - 16 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays 8 - 8 |