Coregonus bavaricus is redescribed based on literature data and three specimens from Lake Ammersee in Germany caught in 1951 (2) and 2003 (1). It is distinguished from other species of Coregonus in prealpine lakes by: 18-30 gill rakers; short head; pectorals, when folded forward, reaching at most to corner of mouth, pectorals 17-19% SL; spawning in June-July. This species is endemic to Lake Ammersee, and, apparently, at the very border of extinction today.