The Pfarrig (Coregonus confusus) is a presumed extinct freshwater fish from Lake Murten in Switzerland. It was described as Coregonus annectens confusus by Victor Fatio in 1885 from a syntype which has been lost in 1902. The last collection was made in 1885. A survey in 1950 led by Emile Dottrens failed to rediscover this species. The causes for its disappearance were possibly the Jura water corrections between 1868 and 1878. The hydrography of the lake was heavily modified and the food supplie… (More on Pfarrig)