Betta ferox Schindler & Schmidt, 2006
Betta ferox
photo by Linke, H.

Family:  Osphronemidae (Gouramies), subfamily: Macropodusinae
Max. size:  6.29 cm SL (male/unsexed)
Environment:  pelagic; freshwater
Distribution:  Asia: Thailand.
Diagnosis:  Dorsal spines (total): 1-1; Dorsal soft rays (total): 8-9; Anal spines: 1-2; Anal soft rays: 24-26. This species is a member of the Betta pugnax group with the following characters: a comparatively deep-bodied species, body depth at dorsal-fin base 31.4-35.0 % of SL; differs from its congeners in having a head length of 30.0-33.6% of SL, caudal fin with transverse bars, presence of chin-bar and second postorbital stripe, A 26, lateral scales 29-31 (mode 30), lanceolate caudal fin, absence of a broad dark marginal band on anal or caudal fin (Ref. 78499).
Biology:  The type locality was described as a small river with current (0.4 m/s); ground formed by gravel and in parts by sand. The fighting fishes were found at the banks, slower current , between roots and plants (Araceae). Water data as described: pH 5.8-6.3, 30-52 µS/cm, 23.3- 24.2 °C. Type specimens in February 2005 with pH 6.3, electric conductivity 51 µS/cm and water-temperature 25.5 °C (Ref. 78499).
IUCN Red List Status: Data deficient (DD); Date assessed: 12 January 2019 Ref. (130435)
Threat to humans:  harmless


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