laluchensis, Rhamdia Weber [A.], Allegrucci [G.] & Sbordoni [V.] 2003:275, Figs. 2-3 [Ichthyological Exploration of Freshwaters v. 14 (no. 3); ref. 27394] Subterranean watercourse in Sistema de La Lucha, 17°03'40"N, 93°53'23"W, entrance about 5 kilometers southwest of village of Aguablanca situated at extreme eastern shore of Malpaso Reservoir (Presa Nezahualcoyotl), Municipio Ocozocoautla, Chiapas, Mexico. Holotype: ZMH 9373. Paratypes: BMNH 1982.10.27.1-5 (5), ZMH 9374 (4). Type catalog: Ferraris 2007:198 [ref. 29155]. •Possibly a synonym of Rhamdia laticauda (Kner 1858) -- (Arroyave & Cruz-Fernández 2021:28 [ref. 39238]). •Valid as Rhamdia laluchensis Weber, Allegrucci & Sbordoni 2003 -- (Bichuette & Trajano 2005:588 [ref. 28555], Proudlove 2006:139 [ref. 28992], Ferraris 2007:198 [ref. 29155], Page et al. 2013:83 [ref. 32708], Page et al. 2023:77 [ref. 40505]). Current status: Valid as Rhamdia laluchensis Weber, Allegrucci & Sbordoni 2003. Heptapteridae: Rhamdiinae. Distribution: Southern North America: subterranean river system, northwestern Chiapas (Mexico). Habitat: freshwater.