Teleostei (teleosts) >
Anabantiformes (Gouramies, snakeheads) >
Osphronemidae (Gouramies) > Macropodusinae
Etymology: Betta: Malay/Javanese origin. Bleeker (1850, 1858) indicates Ikan Wadder Bettah as the local name of Betta trifasciata Bleeker, 1849 (now Betta picta, Valenciennes, 1846) in the Ambarawa Javanese dialect. Ikan Wader is a common Javanese name for smaller freshwater fishes, especially cyprinids (already used in Old Javanese). See Blust, R. & Trussel, S. Austronesian Comparative Dictionary. Web Edition (https://www.trussel2.com/acd/).
More on author: Kottelat.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical; 24°C - ? (Ref. 13614)
Asia: southeastern Thailand and Mekong basin in Laos and Cambodia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.0 cm SL male/unsexed; (Ref. 43281)
Anal spines: 2; Anal soft rays: 21 - 25. Head length 2.7-2.9 times in SL; male with anal fin extending about to mid-length of caudal fin; 3 dark stripes on brown body of both sexes; anal fin of live adult male with dark margin and blue submarginal band (Ref. 43281).
Body shape (shape guide): fusiform / normal.
Facultative air-breathing (Ref. 126274); Found in marshes and slow flowing streams (Ref. 43281). Specimens were collected between overflowed plants; clear and colourless water; water data taken in Oct. 1999, 2:00 pm: pH 6.6, 180 µS/cm and 25.8 °C (Ref. 78499).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kottelat, M., 2001. Fishes of Laos. WHT Publications Ltd., Colombo 5, Sri Lanka. 198 p. (Ref. 43281)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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