Typový druh
Pyxiloricaria menezesi Isbrücker & Nijssen, 1984.
Původní popis
Isbrücker I. J. H. & Nijssen H. 1984. Pyxiloricaria menezesi, a new genus and species of mailed catfish from Rio Miranda and Rio Cuiabá, Brazil (Pisces, Siluriformes, Loricariidae). Bijdr. Dierkd. v. 54 (no. 2). 163-168.