1991 Volume 44 Issue 11 Pages 1131-1134
Lymnaea truncatula is found in the Nemuro district of Hokkaido, but not Lymnaea ollula an intermediate host of Fasciola sp. L. truncatula from this district was examined to determine whether it functions as a snail host for liver flukes. Rediae and cercariae were observed in 2 of 1, 024 snails from Betsukai-cho in the Nemuro district. Experimental infection of L. truncatula was induced by miracidia of Fasciola sp. from Betsukai-cho. Rediae and cercariae were observed in 90 and 6 of 150 snails, respectively. L. truncatula is thus clearly shown to serve as an intermediate host of Fasciola sp. in the Nemuro district.