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 |
Differs from other members of the Betta unimaculata species group by the following combination of characters: distinct black spot near caudal peduncle; body wormish; opercle blue; uniform caudal fin coloration; vertebrae 33-34 (mode 33); anal-fin rays 30-31 (mode 30); dorsal-fin rays 8; pectoral fin rays 12-13 (mode 13); subdorsal scales 5-5 1/2 (mode 5 1/2); lateral scales 32-34 (mode 33); predorsal scales 24; predorsal length 68.8-71.9% SL; head length 31.4-33.3% SL; length of anal-fin base 52.2-54.5% SL; length of dorsal-fin base 10.5-11.3% SL; lower jaw length 27.3-33.1% HL (Ref. 56613). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | 32 - 34 |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | 18 - 20 |
Scale rows below lateral line | 6 - 8 |
Scales around caudal peduncle | |
Barbels | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total | 33 - 34 |
Attributes | |
Fins number | |
Finlets No. | Dorsal |
Ventral | |
Spines total | 0 - 1 |
Soft-rays total | 7 - 8 |
Adipose fin | absent |
Attributes | more or less truncate |
Fins number | |
Spines total | 1 - 2 |
Soft-rays total | 28 - 30 |
Pectoral | Attributes |
Spines | |
Soft-rays 12 - 13 | |
Pelvics | Attributes |
Position | |
Spines | |
Soft-rays |