stygaea, Rhamdia guatemalensis Hubbs [C. L.] 1936:203, Pl. 1 (fig. 2) [Carnegie Institution of Washington Publications No. 457 (art. 17); ref. 2247] San Isidro Cave, Salar Colony, near Merida, Yucatán, Mexico. Holotype: UMMZ 102218. Paratypes: UMMZ 102112-13 (4, 3); USNM 117599 [ex UMMZ 102112] (1). Type catalog: Ferraris & Vari 1992:38 [ref. 19771], Ferraris 2007:202 [ref. 29155] •Synonym of Rhamdia guatemalensis (Günther 1864), but a valid subspecies as described -- (Burgess 1989:278 [ref. 12860], Scharpf 2006:20 [ref. 30386]). •Mention -- (Romero & Paulson 2001:26 [ref. 26040]). •Synonym of Rhamdia quelen (Quoy & Gaimard 1824) -- (Silfvergrip 1996:96 [ref. 22347], Bockmann & Guazzelli in Reis et al. 2003:425 [ref. 27061], Ferraris 2007:202 [ref. 29155]). •Synonym of Rhamdia guatemalensis (Günther 1864). Current status: Synonym of Rhamdia guatemalensis (Günther 1864). Heptapteridae: Rhamdiinae. Habitat: freshwater.