Description. As in description of genus; Tables 1, 2, 4. Head long (22.9 – 29.7 % SL); snout long (59.5 – 71.8 % HL); 3, rarely 0 – 2, pairs of labial barbels; 10 ½, rarely 9 ½ or 11 ½, branched dorsal rays; 10, rarely 9 or 11, pectoral rays; 28 – 31 abdominal + 11 – 14 caudal = 42 – 44 total vertebrae (Table 1; Roberts 1989, 1993). Maximum SL = 183.6 mm, TL = 221.8 mm (UF 235414). Color. Dark spots in 1 or 2 rows on top of head, scattered or in 1 poorly defined row on side of head. Eleven – 17 dark saddles along dorsal midline; 7 – 13 large dark spots or blotches along lateral line from head to caudal fin; dark spots or reticulations on upper side of body. Dark pigment on lower side highly variable; usually absent, but rarely with many dark specks. Four – 5 faint bands on dorsal and caudal fins; other fins with no or faint bands; caudal fin sometimes with dark lower margin. Bold black spot in center of ocellus near upper margin of caudal-fin origin. Bleeker (1860) described A. dialuzona as having irregular, diffuse, violet-colored spots in a longitudinal row or more or less united into a stripe along the side of the body, a small black spot at the upper edge of the caudal-fin base; and 3 – 4 dusky bands on the caudal fin.
Sumber: Revision of the horseface loaches (Cobitidae, Acantopsis), with descriptions of three new species from Southeast Asia