luigiana, Rhamdia Villa [J.] 1977:133, Figs. 1-3 [Brenesia Nos 12-13; ref. 7293] Lake Nicaragua, between Ometepe and Zapatera Islands, Dept. de Granada, Nicaragua, depth 10-12 meters. Holotype: USNM 217535. Paratypes: AMNH 36563 (2); BMNH 1977.7.11.1-2 (2); CAS 39440 (2); FMNH 83833-34 (2, 2); UF 23761 (1); GCRL 15700 (5); KU 17300 (2, c&s), 17301 (2); MCZ 52519 (2); MHNG 1554.96-97 (2); TU 102026 (3); UMMZ 200737 (2);USNM 217549 (1, allotype); ZMH 6116 (5); plus author's collection. Type catalog: Ibarra & Stewart 1987:74 [ref. 12367], Ferraris & Vari 1992:38 [ref. 19771], Wilkens & Dohse 1993:413 [ref. 21161], Bart & Taylor 1993:50 [ref. 20906], Ferraris 2007:199 [ref. 29155]. •Valid as Rhamdia luigiana Villa 1977 -- (Villa 1982:122 [ref. 36708]). •Synonym of Rhamdia nicaraguensis (Günther 1864) -- (Silfvergrip 1996:91 [ref. 22347], Bockmann & Guazzelli in Reis et al. 2003:424 [ref. 27061], Ferraris 2007:199 [ref. 29155]). Current status: Synonym of Rhamdia nicaraguensis (Günther 1864). Heptapteridae: Rhamdiinae. Habitat: freshwater.