Illustrations of specimens of each species from Lake Thun. From top to bottom: Coregonus alpinus: non-type, NMBE-1077244, 343 mm, male; Coregonus steinmanni: paratype, NMBE-1077218, 289.5 mm, male; Coregonus acrinasus: paratype, NMBE-1077270, 270 mm, male; Coregonus fatioi: nontype, NMBE-1077138, 267 mm, male; Coregonus albellus: non-type, NMBE-1077188, 215 mm, male; Coregonus profundus: non-type, Eawag-123850, 195 mm, male. The black scale (1cm) below each fish acts as a reference for the actual size of the specimen.