| Main Ref. | Arunachalam, M., S. Chinnaraja and R.L. Mayden, 2016 |
| 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 | sub-terminal/inferior |
| Type of scales | |
| Diagnosis |
Hypselobarbus gracilis can be distinguished from H. dubius in having 11 predorsal scale rows (vs. 14), 13-14 circumpeduncular scale rows (vs. 18-19), 23-24 circumferential scale rows (vs. 30-33), 30-31 preanal scale rows (vs. 34-38), and maxillary barbel length 36.25-40.16% HL (vs. 21.23-34.94 %HL). It differs from H. micropogon in having 13-14 circumpeduncular scale rows (vs. 16-18), 23-24 circumferential scale rows (vs. 26-29) and the morphometric characters postdorsal length 55.20-56.49 %SL (vs. 46.99-53.93 %SL) and interorbital width 32.49-33.21 % HL (vs. 34.70-41.76 %HL). It can be diagnosed rom H. nilgiriensis in having 11 predorsal scale rows (vs. 15), 13-14 circumpeduncular scale rows (vs. 18-19), and 23-24 circumferential scale rows (vs. 34-35) (Ref. 110275). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 40 - 42 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | 13 - 14 |
| Barbels | 4 |
| 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 | 13 - 13 |
| Adipose fin | absent |
| Attributes | forked |
| Fins number | |
| Spines total | |
| Soft-rays total | 8 - 8 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 15 - 15 | |
| Pelvics | Attributes more or less normal |
| Position abdominal behind origin of D1 | |
| Spines | |
| Soft-rays 10 - 11 |