title: Darwininitium - a new fully pseudosigmurethrous orthurethran genus from Nepal (Gastropoda, Pulmonata, Cerastidae).
abstract: A new genus and species of pseudosigmurethrous orthurethran pulmonate of the family Cerastidae, Darwininitium shiwalikianumgen. n. and sp. n. is described from the Lesser Himalaya of Nepal. It represents the first record of an orthurethran with a fully developed pseudosigmurethrous pallial system, having a completely closed secondary ureteric system. Biogeographically this new taxon provides a significant range extension for the family north of the previously known distribution range.
authors.affiliation: Central Department of Zoology, Tribhuvan University, Kirtipur, Kathmandu, Nepal.
authors.forename: Prem B
authors.initials: PB
authors.lastname: Budha
authors.forename: Peter B
authors.initials: PB
authors.lastname: Mordan
authors.forename: Fred
authors.initials: F
authors.lastname: Naggs
authors.forename: Thierry
authors.initials: T
authors.lastname: Backeljau