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Furujo, Y. & Tomiyama, K. (2000). Distribution and microhabitat of coexisting two freshwater snail species, Semisulcospira libertina (Gould) (Prosobranchia; Pleuroceridae) and Clithon retropictus (Martens) (Prosobranchia: Neritidae). Venus (Journal of the Malacological Society of Japan). 59 (3): 245-260.
Furujo, Y. & Tomiyama, K. (2000). Distribution and microhabitat of coexisting two freshwater snail species, Semisulcospira libertina (Gould) (Prosobranchia; Pleuroceridae) and Clithon retropictus (Martens) (Prosobranchia: Neritidae). Venus (Journal of the Malacological Society of Japan). 59 (3): 245-260.