Pearse—Parasitic Worms From Wisconsin Fishes. 159 
TRANS. WIS. ACAD., VOL. XXI PLATE 7.1 
7. Crepidostomum illinoiense Faust. 
8. Allocreadium urmatum (MacCallum). 
9. Macroderoides spiniferus new species. 
10. Capillaria catostomi new species; portion of body showing esophagus, 
intestine, ulva, and uterus. 
10a. Capillaria catostomi new species; egg. 
11. Ascaris scaphirhynchi new species, anterior end. 
