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 .
Dorsal soft rays (total): 12; Anal soft rays: 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 .: elongated.
Behavioural data for Schistura Udomritthiruji is currently being reviewed.
Freshwater; demersal; pH range: 8.0 - ?. Tropical; 29°C - ?
The following diseases are known to affect Schistura Udomritthiruji.
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