Betta simplex Kottelat, 1994
photo by Hippocampus-Bildarchiv

Family:  Osphronemidae (Gouramies), subfamily: Macropodusinae
Max. size:  8 cm TL (male/unsexed)
Environment:  benthopelagic; freshwater; pH range: 7; dH range: 11
Distribution:  Asia: endemic to Thailand.
Diagnosis:  Body oblong, dusky or yellowish brown with 3 fainted dark stripes. Opercle with blue green patch, fins with iridescent blue, anal fin with dark margins. Pelvic fin short, anal fin base long, caudal fin rounded (Ref. 58784).
Biology:  Inhabits limestone streams and marshes (Ref. 58784). The type locality was described as a pool of 10-15 m diameter, up to 10 m deep and the species was collected along the banks. Water data reported was 27 °C, pH 7.0, electric conductivity 530 µS/cm. Examined specimens were collected in a comparatively fast flowing, clear-water creek and were found between plants (Ref. 78499). Carnivorous, feeding on zooplankton and insects (Ref. 58784).
IUCN Red List Status: Critically Endangered (CR); Date assessed: 21 February 2011 (B1ab(iii)+2ab(iii)) Ref. (130435)
Threat to humans:  harmless


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