Urorchis is a genus of trematodes in the family Opecoelidae.
Species Urorchis acheilognathi Yamaguti, 1934Yamaguti, S. (1934). Studies on the helminth fauna of Japan. Part 2. Trematodes of fishes. I. Japanese Journal of Zoology, 5, 249–541. Urorchis goro Ozaki, 1927 Urorchis imba Ishii, 1935Ishii, N. (1935). Brief note on a new species of fish trematodes, Urorchis imba. Japanese Journal of Zoology, 6, 547–549.
References