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

The alpha taxonomy of the endemic whitefish of lakes Brienz and Thun, Switzerland, is revised. We evaluate the status of seven known species: Coregonus steinmanni sp. nov., Coregonus profundus sp. nov. and Coregonus acrinasus sp. nov. are endemic to Lake Thun; Coregonus brienzii sp. nov. is endemic to Lake Brienz; and C. alpinus, C. albellus, and C. fatioi from lakes Brienz and Thun are redescribed. One of these species, C. alpinus, 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 C. alpinus 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. Coregonus acrinasus is genetically partially of allochthonous origin, closely related to the radiation of Lake Constance, and we therefore c...

本研究对瑞士布里恩茨湖与图恩湖的特有白鲑类群开展了阿尔法分类学（alpha taxonomy）修订。本次研究评估了7个已知物种的分类地位：Coregonus steinmanni sp. nov.、Coregonus profundus sp. nov.及Coregonus acrinasus sp. nov.为图恩湖特有物种；Coregonus brienzii sp. nov.为布里恩茨湖特有物种；原记载于两湖的C. alpinus、C. albellus及C. fatioi则予以重新描述。其中C. alpinus的分类地位得以修订，原因是其指定选模标本（lectotype）与Kottelat（1997）及Kottelat与Freyhof（2007）给出的物种描述不符。据此，我们将C. alpinus这一分类单元名称保留给Kottelat（1997）所指定的选模标本，并为该类群提供新的描述。对于Kottelat（1997）与Kottelat及Freyhof（2007）原以C. alpinus为名描述的其余类群，新命名为C. profundus。Coregonus acrinasus在遗传层面部分具有异源起源，与康斯坦茨湖的物种辐射演化类群亲缘关系密切，因此我们……