Alaria species
Alaria species are intestinal trematodes of domestic dogs and occasionally cats, and of free-ranging canids and felids.
Metorchis conjunctus
Adults of the trematode Metorchis conjunctus live in the biliary system of domestic dogs and free-ranging fish-eating mammals in North America.
Nanophyetus salmincola
Adults of the trematode Nanophyetus salmincola live in the small intestine of domestic dogs and free-ranging fish-eating mammals in northwestern North America and eastern Russia.