laosensis, Dasyatis Roberts [T. R.] & Karnasuta [J.] 1987:162, Fig. 1 [Environmental Biology of Fishes v. 20 (no. 3); ref. 9122] Mekong River, Chiang Kham District, Chieng Rai Province, Thailand. Holotype: BMNH 1985.9.26.1. Paratypes: BMNH 1985.9.26.2 (1); NIFI 0132 (1), 01671-72 (1, 1); NRM 36612 (1). •Valid as Amphotistius laosensis (Roberts & Karnasuta 1987) -- (Rainboth 1996:53 [ref. 22772]). •Valid as Dasyatis laoensis Roberts & Karnasuta 1987 -- (Kottelat 1998:20 [ref. 23436], Compagno 1999:495 [ref. 25589], Kottelat 2001:25 [ref. 25780], Schwartz 2008:36 [ref. 36773], Kottelat 2013:26 [ef. 32989], Weigmann 2016:130 [ref. 34211], Zhang et al. 2016:44 [ref. 34477], Fu et al. 2021:9567 [ref. 39347]). •Valid as Hemitrygon laosensis (Roberts & Karnasuta 1987) -- (Last et al. 2016:355 [ref. 34581], Last et al. 2016:556 [ref. 35010], Taki et al. 2021:35 [ref. 39830]). Current status: Valid as Hemitrygon laosensis (Roberts & Karnasuta 1987). Dasyatidae: Dasyatinae. Distribution: Southeast Asia. Habitat: freshwater.