Lisachov A 1

1. Diversification in the steppe rat snake Elaphe dione (Pallas, 1773) coincides with the Mid-Pleistocene climatic transition of Eurasia
2. Recent recolonisation of West Siberia and northern cryptic refugia in the grass snake Natrix natrix scutata (Pallas, 1771) (Squamata: Natricidae)
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