164 Wisconsin Academy of Sciences, Arts, and Letters, 
Bunodera Inciopercae 0. F. Muller 
A parasite that was found only in the intestine and the in¬ 
testinal caeca. 
Clinostomum sp.? 
Large white cysts enclosing this parasite occurred in the flesh 
just beneath the skin; sometimes on the gills and in the eye sockets. 
Acanthocephala 
Echinorhynchus thecatus Linton 
This hook-headed worm occurred as an intestinal parasite and 
in cysts in the peritoneum. 
NeoecJiinorJiynchus cylindratus (Yan Cleave) 
An intestinal parasite. 
Acanthocephalan cysts 
These cysts were mostly those of Echinorhynchus thecatus Lin¬ 
ton, but as it is not certain that they all belonged to that species, 
they are not definitely assigned to it. 
Nematoidea 
Bacnitoides cotylophora Ward and Magath 
This nematode was an intestinal parasite in the perch. 
Icthyonema cylindraceum Ward and Magath 
A filarial worm that occurred in cysts in the peritoneum and 
liver. 
Cestoidea 
Proteocephalus sp.? 
Most of the intestinal proteocephalids were P. pearsei La Rue. 
Perhaps all belonged to this species. 
Proteocephalid cysts 
Encysted proteocephalids were commonly encountered; usually 
in the liver, but often in the peritoneum. Those identified were 
the cysts of Proteocephalus amhloplitis (Leidy). 
