Author: Yang, Chen & Yang, 2008
Comments: This species was found syntopic with <i>Bangana lippus</i> (Fowler, 1936) during the early flood season, where both share similar body shape and size,  as well as a black blotch on the base of the caudal fin. <i>Mekongina lancangensis</i> is readily distinguished from <i>B. lippus</i> in having a rostral cap split into 19-27 papillate lappets (vs. rostral cap smooth) and upper lip degenerated and is discontinuous from the lower lip (vs. upper lip developed, continuous with lower lip) (Ref. 79744).