Perez, K.E. , Hutchins, B.T. , Solis, M. and Schwartz, B.F. 2022.

New species of Pyrgulopsis Call & Pilsbry, 1886 (Mollusca: Caenogastropoda: Hydrobiidae) from two Chihuahuan Desert springs

. Zootaxa. 5213, 1 (Nov. 2022), 64–74. DOI:https://doi.org/10.11646/zootaxa.5213.1.4.