Note the thick, circular fleshy character of the specimens in the bottom of the jar. Also the flukes buried in the rumen papillae. . This tematode occurs in the lungs of dogs, cats, and wild carnivores and is found in fibrotic lung cysts. The second intermediate host is a crayfish. The male is the larger of the two, and has the gynaecophoral groove where the female resides following mating.
Seperate sexes are the distinguishing feature of the schistosomes. .