Notes on terrestrial molluscs of the island of Sulawesi. 3. The genera Palaina, Arinia and Opisthostoma (Gastropoda, Prosobranchia, Diplommatinidae), with descriptions of a dozen new taxa

This paper deals with the systematics of the genera Palaina, Arinia and Opisthostoma (Diplommatinidae) of Sulawesi. Twelve species are described as new to science: Palaina altumbilicata, P. monticola, P. tondokensis, P. wezendonki, P. adonisi, Arinia kessneri, A. toradjensis, A. bantimurungensis, A. wasupondensis, A. dilatata, A. hoeksemai, Opisthostoma henki. A neotype is designated for Arinia minahassae Kobelt.