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

Family:  Osphronemidae (Gouramies), subfamily: Macropodusinae
Max. size:  5.1 cm SL (male/unsexed)
Environment:  pelagic; freshwater
Distribution:  Asia: Thailand.
Diagnosis:  Dorsal spines (total): 1-1; Dorsal soft rays (total): 8-9; Anal spines: 2-3; Anal soft rays: 23-24. This species belonging to the Betta pugnax group is differentiated from the others by having the following characters: elongated last branchiostegal ray extending beyond posterior margin of the operculum; 25-26 total anal-fin rays; 29-30 lateral scales (Ref. 78499).
Biology:  This species was collected in hill-streams strongly shaded by forest; mostly found in shallow water close to the shores between roots, plants or leaf litter. Some specimens were also collected from the swift flowing area between boulders. Water data from the type locality: colourless, clear and with a pH of 6.2, an electric conductivity of 20-40 µS/cm and a temperature of 24-26 °C (Ref. 78499).
IUCN Red List Status: Data deficient (DD); Date assessed: 12 January 2019 Ref. (123251)
Threat to humans:  harmless
Country info:  Type locality, Province Narathiwat, about 20 km west of Narathiwat at street to Marubo, MTD F 30341 (holotype of Betta apollon, 5.1 cm SL, adult male). Known only from the hill streams west of Narathiwat in peninsular Thailand. Formerly, specimens from southern Thailand were classified as B. taeniata or identified as B. pugnax by Vierke in Geisler (1981). (Ref. 78499).

Entered by: Bailly, Nicolas - 04.08.08
Modified by: Capuli, Estelita Emily - 15.08.08

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