Typový druh
Pygidium hasemani Eigenmann, 1914.
Původní popis
Henschel, E., Mattos, J. L. O., Katz, A. M. & Costa, W. J. E. M. 2018. Position of enigmatic miniature trichomycterid catfishes inferred from molecular data (Siluriformes). Zoologica Scripta v. 47 (no. 1): 44-53.
Použitá literatura
- Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds) 2024. Eschmeyer's catalog of fishes: Genera, species, references. World Wide Web electronic publication.