| Main Ref. | Tan, H.H. and P.K.L. Ng, 2005 |
| 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 akarensis group distinguished from other members by possessing the following combination of characters: opercle with interrupted second postorbital stripe; eye color orange when alive; anal-fin rays 27-30; subdorsal scales 6-7; lateral scales 29-30; predorsal scales 21-24; postdorsal scales 10-12; preanal length 48.5-52.6% SL ; head length 32.6-37.5% SL; length of anal-fin base 47.8-55.4% SL (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 | 15 - 16 |
| Scale rows below lateral line | 6 - 6 |
| Scales around caudal peduncle | |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total | 30 - 31 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 0 - 2 |
| Soft-rays total | 8 - 9 |
| Adipose fin |
| Attributes | more or less truncate |
| Fins number | |
| Spines total | 0 - 3 |
| Soft-rays total | 27 - 27 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 12 - 12 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |