Cobb, Tyler P., Royal Alberta Museum, Canada

• The Canadian Field-Naturalist Vol. 133 No. 3 (2019) - Notes
  First recorded co-occurrence of Valvata lewisi Currier, 1868 and Valvata lewisi ontariensis Baker, 1931 (Gastropoda: Valvatidae) from Alberta, Canada, with notes on morphometric and genetic variability
  Abstract  PDF