Over de landmollusken van het Nationale Park ”Henri Pittier”, Venezuela

Until now the landsnail fauna of the National Park ”Henri Pittier” was known by the publication of Thompson (1957), who listed 15 species. Two short visits during May 1975 have brought 12 additional species to light, viz.: Helicina microdina subsp. nov. to be described in Basteria 40(5/0)/, Neocyclotus t. translucidum, Licina plicatula, Diaopeas beckianum, Lamellaxis micron, Eudolichotis distorta, Naesiotus pilosus (first record for Venezuela), Drymaeus correctus, Drymaeus debilis (first exact locality), Orthalicus maracaibensis, Happia guildingi, Thysanophora plagioptycha.