A taxonomic revision of the whitefish of lakes Brienz and Thun, Switzerland, with descriptions of four new species (Teleostei, Coregonidae) Author Selz, Oliver M. Department of Fish Ecology and Evolution, Centre for Ecology, Evolution & Biogeochemistry, Eawag: Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland & Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland https://orcid.org/0000-0002-2210-5909 oliver.selz@eawag.ch Author Doenz, Carmela J. Department of Fish Ecology and Evolution, Centre for Ecology, Evolution & Biogeochemistry, Eawag: Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland & Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland Author Vonlanthen, Pascal Department of Fish Ecology and Evolution, Centre for Ecology, Evolution & Biogeochemistry, Eawag: Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland & Aquabios GmbH, Les Fermes 57, 1792 Cordast, Switzerland Author Seehausen, Ole Department of Fish Ecology and Evolution, Centre for Ecology, Evolution & Biogeochemistry, Eawag: Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland & Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland text ZooKeys 2020 989 79 162 http://dx.doi.org/10.3897/zookeys.989.32822 journal article http://dx.doi.org/10.3897/zookeys.989.32822 1313-2970-989-79 F78F6D879DDB4CD98E4C60E4883A59B6 65AB71A5B3985F5E9FBF8CD56BC96143 Coregonus gutturosus, Gmelin, 1818 Material examined. Non-types . NMBE-1076230 ( Eawag-246 ), NMBE-1076232 ( Eawag-248-1 ), NMBE-1076233 (N = 6: Eawag-249-1 , Eawag-249-2 , Eawag-249-3 , Eawag-249-4 , Eawag-249-5 , Eawag-249-6 ), NMBE-1076232 (N = 2: Eawag-248-2 , Eawag-248-3 ), Switzerland , Lake Constance ( 47°38'N , 9°22'E ), N = 10 , 169-292 mm SL. Distribution and notes on biology. Coregonus gutturosus used to be endemic to Lake Constance but is now extinct. Common name. Kilch