MolluscaBase taxon details
original description
Czaja A., Estrada-Rodríguez J.L., Romero-Méndez U. & Orona-Espino A. (2017). Two new subfossil species of springsnails (Hydrobiidae: <i>Pyrgulopsis</i>) from North Mexico and their relation with extant species from Cuatrociénegas. <em>Boletín de la Sociedad Geológica Mexicana.</em> 69(1): 199-208., available online at http://boletinsgm.igeolcu.unam.mx/bsgm/vols/epoca04/6901/%289%29Czaja.pdf
page(s): 202, figs 2a-b [details]