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Abstract
The Glacidorbidae, a family restricted to the Gondwanan realm (Tasmania, southeastern and southwestern Australia, and southern Argentina and Chile), previously included five genera with 20 identified species; 19 of them are Australian, with one genus and species, Gondwanorbis magallanicus (Meier-Brook & Smith, Citation1976), from South America. Here we describe two new species of Gondwanorbis: Gondwanorbis fueguensis n. sp. from the freshwater gastropods province of Southern Patagonia (Argentina) and Gondwanorbis tricarinatus n. sp. from Chile, and a new genus and species from the freshwater gastropods province of northern Patagonia (Argentina), Patagonorbis nahuelhuapensis n. sp and n. gen.
http://www./zoobank.org/urn:lsid:zoobank.org:pub:62EA0972-3AEF-4188-8E6D-F10895CE2BEF
Acknowledgements
This study was financially supported by Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) (PIP 0398), Agency of Scientific Promotion (BID-PICT-2008-0233) and Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata (N636 and N727). We thank especially Dr Winston Ponder, for his help, and L. Semenas and V. Flores for the collection of the material from Río Negro province, Argentina.