New data on the genus Guadiella Boeters, 2003 (Gastropoda: Hydrobiidae) from the northern half of the Iberian Peninsula, with the description of a new species Noves dades sobre el gènere Guadiella Boeters, 2003 (Gastropoda: Hydrobiidae) de la meitat nord de la península Ibèrica, amb la descripció d’una nova espècie

A new species of the Guadiella genus of springsnails is described from Calanda (Teruel province, Aragón, Spain). The status of the previously described Alzoniella murita is reviewed, placing it also in the genus Guadiella. Addi-tional data on Guadiella arconadae and Guadiella ballesterosi are also provided with new material collected from their type localities.
This new species is the eighth known of its genus, all of them in the Iberian Peninsula, and the second stygobiont mollusc found at the same locality, after Hadziella forneri.