Acantopsis thiemmedhi Sontirat 1999

Presence of 8-9 saddle-like bars on back; 8-9 irregular dark blotches or wavy lines above the lateral line and 8-9 irregular or large dark round spots along the lateral line; a row of large oblong dark longitudinal spots near the rim of the dorsal fin and another dark spot on the middle part of the first three front dorsal fin rays; one large oblong dark bar on the middle part of each caudal lobe; a row of smaller vertical oblong dark spots in the middle part of the caudal fin and two or three dark spots on the caudal base; posterior pelvic rims dark (Ref. 48303).

Dorsal soft rays (total): 11 - 12; Analsoft rays: 7 - 8

Inhabits mountain streams and the upper reaches of rivers with sandy bottoms where clear running water is present (Ref. 48303).