Pearse—The Parasites of Lake Fishes. 
171 
Allocreadium ictaluri Pearse 
In the intestine of the channel catfish in Lake Pepin. 
Allocreadium lobatum Wallin 
In the intestine of common sucker in Lake Mendota. 
Azygia sp. ? 
An unidentifiable Azygia was found in the intestine of a yellow 
perch in Lake Michigan. 
Azygia acuminata Goldberger 
This species occurred in the stomachs and intestines of the dog¬ 
fish, white bass, and wall-eyed pike in Lake Pepin. 
Azygia bulhosa Goldberger 
In the intestine of the wall-eyed pike in Lake Pepin. 
Azygia loosii Marshall & Gilbert 
Was found in the stomach and intestine of the rock bass in 
Lake Geneva; the pickerel in Lake Mendota; the pickerel and 
small-mouth black bass in Lake Pepin; the pickerel in Green Lake. 
Bunodera luciopercae 0. P. Muller 
In the intestine and caeca of the yellow perch in Lake Geneva, 
Lake Mendota, and Green Lake. 
Caecincola parvulus Marshall & Gilbert 
In the intestine of the smallmouth black bass in Lake Pepin; 
in the rock bass in Lake Michigan. 
Centrovarium lobotes MacCallum 
In the intestine of the shiner, Notropis hudsonius (De Witt Clin¬ 
ton), in Lake Michigan. 
Clinostomum marginatum Osborn 
Found in cuticular cysts in the yellow bullhead in Lake Pepin. 
Cysts, probably of this species, were found on a yellow perch from 
