| Main Ref. | Tan, H.H. and S.H. Tan, 1996 |
| 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 |
A member of the Betta pugnax species group that can be differentiated from other members by the following combination of characters: presence of chin-bar; absence of dark marks below postorbital stripe on opercle; presence of dorsal transverse bars; caudal transverse bars present only in male; greenish to bluish iridescent scales on opercle and body; red subdistal band and black edge on anal fin; absence of dark edge on caudal fin; anal fin rays 25-28 (mode 26); lateral scales 28-31 (mode 29); postdorsal scales 11-12 (mode 11); pelvic fin length 26.6-43.8% SL; head length 27.5-35.2% SL; inter-orbital width 32.4-53.0% HL (Ref. 56613). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 29 - 30 |
| 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 | 28 - 31 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 0 - 2 |
| Soft-rays total | 7 - 10 |
| Adipose fin | absent |
| Attributes |
| Fins number | 1 |
| Spines total | 1 - 2 |
| Soft-rays total | 24 - 26 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 13 - 13 | |
| Pelvics | Attributes |
| Position | |
| Spines 1 | |
| Soft-rays 5 - 5 |