Figure 1

Photographs of adult individuals of the Baikal endemic amphipod species Eulimnogammarus verrucosus (Gerstfeldt, 1858) (A) and Eulimnogammarus cyaneus (Dybowski, 1874) (B) and Gammarus lacustris Sars,1863 (C), occurring across the Holarctic.

Photographs of adult individuals of the Baikal endemic amphipod species Eulimnogammarus verrucosus (Gerstfeldt, 1858) (A) and Eulimnogammarus cyaneus (Dybowski, 1874) (B) and Gammarus lacustris Sars,1863 (C), occurring across the Holarctic.