Schistura udomritthiruji Bohlen & Ŝlechtová, 2010

Family:  Nemacheilidae (Brook loaches)
Max. size:  4.78 cm SL (male/unsexed)
Environment:  demersal; freshwater; pH range: 8
Distribution:  Asia: Thailand.
Diagnosis:  Dorsal soft rays (total): 12-12; Anal soft rays: 8-8. Differs from congeners by the combination of the following characters: caudal fin with 9+8 branched rays; males possess suborbital flap (absent in females); lateral line ends above base of anal fin; caudal fin hyaline; and bars on posterior half of body more than twice as wide as interspaces (Ref. 83421).
Biology:  At the time of sampling, the type locality was a stream with width up to 8 m, but the riverbed would allow a 20 m wide river at high water level, and with calm stretches, depression up to 1 m deep as well as riffles. Riffle consisted of gravel with few larger stones and maximum water depth of 40 cm (Ref. 83421).
IUCN Red List Status: Least Concern (LC); Date assessed: 20 April 2011 Ref. (130435)
Threat to humans:  harmless
Country info:  Found in streams draining to the Andaman Sea in southern Thailand between Takua Pa and Ranong (Ref. 83421). Recorded from the river Kra in Ranong province (Ref. 95537).


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