title: Two new species of Zospeum Bourguignat, 1856 from the Basque-Cantabrian Mountains, Northern Spain (Eupulmonata, Ellobioidea, Carychiidae).
abstract: Two new species of the genus Zospeum Bourguignat, 1856 are described from caves in the Sierra de Aitzgorri (Gipuzkoa) and the Sierra Salvada (Burgos) in Northern Spain. The taxa Zospeumvasconicum sp. n. and Zospeumzaldivarae sp. n. have recently, without a formal name, been included in a molecular study of worldwide members of the Carychiidae. In the present paper, the shell morphology and variation of these species is described and illustrated.
authors.affiliation: Naturhistorisches Museum der Burgergemeinde Bern, CH-3005 Bern, Switzerland; Institute of Ecology and Evolution, University of Bern, CH-3012 Bern, Switzerland.
authors.forename: Adrienne
authors.initials: A
authors.lastname: Jochum
authors.affiliation: Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands.
authors.forename: Anton J
authors.initials: AJ
authors.lastname: de Winter
authors.affiliation: Department of Animal Ecology, Evolution and Biodiversity, Ruhr University Bochum, 44801 Bochum, Germany.
authors.forename: Alexander M
authors.initials: AM
authors.lastname: Weigand
authors.affiliation: Department of Zoology, University of the Basque Country (UPV/EHU), 01006-Vitoria, Spain.
authors.forename: Benjamín
authors.initials: B
authors.lastname: Gómez
authors.affiliation: Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48080-Bilbao, Spain.
authors.forename: Carlos
authors.initials: C
authors.lastname: Prieto
keywords: Cave-dwelling species; conservation; ecology; microgastropoda; pseudo-cryptic species; shell variability; subterranean snail