| Main Ref. | Knight, J.D.M. and R.G. Kumar, 2015 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | fusiform / normal |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Oreichthys cosuatis differs from Oreichthys coorgensis by the absence of a spot on the caudal-fin base (vs. presence), having a bright-yellow dorsal fin with a large black mark covering the distal margin of the dorsal fin, and red ventral fins (vs. hyaline dorsal and ventral fins with an inconspicuous black bar on the tip of the dorsal fin), and a black spot in the anal fin (vs. a black bar on the anal fin) (Ref. 94423). Description: Dorsal-fin rays iii, 9; anal-fin rays ii, 7; pectoral-fin rays i,10; pelvic-fin rays i, 7 (Ref. 99423). |
| 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 | |
| Adipose fin | absent |
| Attributes | forked |
| Fins number | |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays | |
| Pelvics | Attributes more or less normal |
| Position abdominal behind origin of D1 | |
| Spines | |
| Soft-rays |