Date of this Version
The trematodes reported below are part of a helminth collection made in Korea by J. Knox Jones and Warren D. Thomas, who in 1954 were attached to the 406th Medical Laboratory in Tokyo. The helminths were sent to Dr. H. W. Manter who kindly made the trematode specimens from bats available to me. The study was made under his direction.
Three of the four species are considered new; one in the genus Prosthodendrium; two in the genus Acanthatrium.