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Information on identification methodology


Information on the species concept
Betta identification

Body color (in males)
unknown or not in list
Brightly reddish (ochre, orange or red)
Dull reddish brown or dark with blue/green iridescent colors
Dark (brown)
Brown/green background with green iridescent at the scale ends
Dark bluish color
Yellow/brown color
Color pattern on anal fin
unknown or not listed
broad white margin
thin white margin
blue margin
Reddish yellow margin
green margin
Color pattern on caudal fin
unknown or not listed
no margin
broad white margin
thin white margin
Blue or dark margin
red margin
Color pattern on dorsal fin
unknown
white margin
blue or dark margin
Color patterns on body
unknown or not listed
No markings - uniform colored
Bars or indistinct stripes
Broad stripes
Blue lateral blotch
Color patterns on head (near eye)
Triangualr dark mark below eye
Central stripe (from snout tip through center of the eye)
unknown or no stripe
Form of caudal fin
unknown
rounded
rhomboid
pointed
Gill cover color
unknown or not listed
Iridescent blue/green
Color same as body color
Two prominent reddish-yellow bars
Iris of the eye
unknown
with iridescent spots, blue or green
without iridescent spots
Postion of dorsal fin
above anterior half of anal fin
unknown
above posterior half (or in the middle) of anal fin
Size of mouth
unknown
large mouth,upper lip reaching vertical from front margin of the
small mouth,upper lip completely in front of eye
Total length
unknown
smaller than or equal to 5 cm
larger than 5 cm
larger than 10 cm

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