New and little-known Clausiliidae (Gastropoda Pulmonata) from eastern Turkey

Cristataria colbeauiana inversa n. ssp. and Roseniella nemethi n. sp. are introduced as new taxa from eastern Turkey and their systematic position is discussed. The genital morphology of Pontophaedusella ofensis Nordsieck is presented, with comments on its relevance to the phylogenetic status of this clausiliid of the Serrulina group.