Contributions to the distribution of the Clausiliidae (Gastropoda, Pulmonata) in the Karst regions of Romania

INTRODUCTION In this paper the Clausiliidae collection of the Institutul de Speologie "Emil Racovitza" at Bucharest, Romania, is dealt with. The specimens are from 68 localities of the Karst regions of Romania. They were collected in caves or in the direct neighbourhood of caves, between 1956 and 1965 by S. Avram, A. Bălăcescu, D. Dancău, V. Decu, M. Dumitrescu, M. Georgescu, A. Negrea, St. Negrea, T. Orghidan, E. Serban, I. Tăbăcaru and J. Tanasache. Twenty four species, subspecies or varieties could be identified. Among these one species was found to be new to science, viz. Laciniaria (Bulgarica) dobrogensis sp. nov., which is described in this paper. Boettger (1940), Grossu (1943, 1955, 1964) and Negrea (1962, 1963, 1964, 1965, 1966) published on the Clausiliidae from the Romanian caves. The last mentioned study is a survey of the mollusks known from these caves. Of the Clausiliidae of the Karst regions outside the caves, only little is known (Grossu, 1955). Boettger (1940) mentioned the following species from caves: (1) Cochlodina laminata from Peştera 1) Pojarul Ghetarului de la Scărişoara (= Peştera Pojarul Poliţei), 72, 753. 2) (2) Clausilia (С.) dubia transsylvanica from Peştera Zgurăşti (= Gheţarul de sub Zgurăşti) 71, 748; Pojarul Gheţarului (= Peştera Pojarul Poliţei) 72, 753; Pestera Hoancele Căldărilor, 73, 761. (3) Laciniaria (Strigilecula) сапа from Peştera din Dîmbul Colibei, 74, 823. (4) Alopia (A.) livida from Peştera Hoancele Căldărilor, 73, 761. Grossu (1943) reported Cochlodina orthostoma viridana from Pestera