NEW TAXA AND DISTRIBUTION DATA OF CLAUSILIIDAE (GASTROPODA: PULMONATA) FROM KARST REGIONS OF SOUTHEAST ASIA

Recently obtained mollusc samples provided valuable new information on the Clausiliidae of Laos, Vietnam, and China's Yunnan Province. Grandinenia dautzenbergi abdoui Grego & Szekeres subsp. nov., Grandinenia muratovi Grego & Szekeres sp. nov., Oospira duci smidai Grego & Szekeres subsp. nov., Phaedusa micropaviei hmongorum Grego & Szekeres subsp. nov., Synprosphyma phuonganhae Do & Szekeres sp. nov., and Synprosphyma thachi Grego & Szekeres sp. nov. are described as new taxa, and the zoogeographical partitioning of the Southeast Asian clausiliid fauna is discussed in the light of the novel distribution data of these and some other noteworthy members of the family.