gracilentus, Clarias Ng [H. H.], Hong [D. K.] & Tu [N. V.] 2011:62, Fig. 1 [Zootaxa No. 2823; ref. 31263] Phu Quoc Island, swamp draining into Rach Vem, ca. 10°22'N, 103°56'E, Vietnam. Holotype: UMMZ 248862. Paratypes: BMNH 1937.9.17.39-40 (2), NLHC 2010.RT1-RT4 (4), 2010.RV1-RV5 (5); UMMZ 248863 (4); ZRC 52046(1). •Valid as Clarias gracilentus Ng, Hong & Tu 2011 -- (Kottelat 2013:243 [ref. 32989]). Current status: Valid as Clarias gracilentus Ng, Hong & Tu 2011. Clariidae. Distribution: Cambodia and Vietnam. Habitat: freshwater.