longianalis, Opsariichthys Nguyen [V. H.], Nguyen [T. H. T.], Do [V. T.] & Nguyen [T. D. P.] 2012:18, Fig. 2 [Newsletter Research Institute for Aquaculture No. 1, issue 5; ref. 33000] •Not available, no designation of a holotype. •Questionably in the synonymy of Opsariichthys bidens Günther 1873 -- (Kottelat 2013:130 [ref. 32989]). Current status: Uncertain as Opsariichthys bidens Günther 1873. Xenocyprididae. Distribution: Dakrong district, Quang Tri province, Vietnam.