Differs from other species of Pseudecheneis by the combination of following characters: 9-14 transverse ridges on the thoracic adhesive apparatus; wide and flat snout, with ratio of snout width at mouth corner to distance between pectoral fin base larger than 0.75; caudal peduncle depth 6.1-9.3% SL and 29.4-46.7% in length of caudal peduncle; four yellow spots on caudal fin which are isolated and not connected with each other; premaxillary tooth band semicircular with six or eight teeth along its outer edge; body covered with dense, rounded tubercles distributed irregularly; tubercles increasing in density gradually from occipital to caudal peduncle; and 33 (17+16), 34 (17+17) vertebrae (Ref. 74729).

Description: D ii, 6; A ii,7; P i+11-13; V i+5. Gill rakers on outer side of first gill arch 7-11 (Ref. 74729).