Třída: Actinopterygii - paprskoploutví
Řád: Siluriformes - sumci
Čeleď: Trichomycteridae - kandirovití

Reference: Myers, G. S. 1944. Two extraordinary new blind nematognath fishes from the Rio Negro, representing a new subfamily of Pygidiidae, with a rearrangement of the genera of the family, and illustrations of some previously described genera and species from Venezuela and Brazil. Proc. Calif. Acad. Sci. (Ser. 4) v. 23 (no. 40): 591-602, Pls. 52-56.