Betta stigmosa Tan & Ng 2005

Differs from other members of the Betta pugnax group by the following unique combination of characters: 5-10 regularly spaced black transverse bars on caudal fin of male and female; in life, both male and female with alternating bluish and black transverse bars on dorsal and caudal fins; both male and female with black transverse bars on posterior few anal-fin rays; anal fin with dark distal edge. It shares with B. prima the presence of a second postorbital stripe on opercle; small adult size (3.1-4.1 cm SL); total anal-fin rays 23-24; lateral scales 29-30 (mode 29); postdorsal scales 10-11 (mode 10); pelvic fin length 33.2-51.8% SL; head length 33.6-36.5% SL; interorbital width 29.8-32.1% HL (Ref. 56613).

Dorsal spines (total): 0 - 1; Dorsal soft rays (total): 8 - 9; Anal spines: 1 - 2; Analsoft rays: 21 - 23; Vertebrae: 28 - 29

Found in hill streams (Ref. 56613).

Betta stigmosa is a species of gourami. It is a freshwater fish native to Asia, where it occurs only in the state of Terengganu in Malaysia. It is typically found in hillstreams. The species reaches 4.1 cm (1.6 inches) in standard length and is known to be a facultative air-breather.