Data from: A taxonomic revision of the whitefish radiation of lakes Brienz and Thun, Switzerland, with descriptions of four new species (Teleostei: Coregonidae)

<p>The alpha taxonomy of the endemic whitefish of lakes Brienz and Thun, Switzerland, is revised. We evaluate the status of seven known species: <em>Coregonus steinmanni </em>sp. nov., <em>Coregonus profundus</em> sp. nov. and <em>Coregonus acrinasus</em> sp. nov. are endemic to Lake Thun; <em>Coregonus brienzii </em>sp. nov. is endemic to Lake Brienz; and <em>C. alpinus, C. albellus,</em> and <em>C. fatioi</em> from lakes Brienz and Thun are redescribed. One of these species, <em>C. alpinus</em>, is revised, since the lectotype for this species is incongruent with the species description given by Kottelat (1997) and Kottelat and Freyhof (2007). The name <em>C. alpinus</em> is thus retained for the lectotype designated by Kottelat (1997) and a new description of this taxon provided. For the species otherwise described by Kottelat (1997) and Kottelat and Freyhof (2007) as C. alpinus the new name C. profundus is designated. <em>Coregonus acrinasus </em>is genetically partially of allochthonous origin, closely related to the radiation of Lake Constance, and we therefore compare it to all recognized species of Lake Constance, <em>C. wartmanni, C. macrophthalmus, C. arenicolus,</em> and <em>C. gutturosus.</em></p>