558 Wisconsin Academy of Sciences, Arts, and Letters, 
Fig. 7. Henneguya sp. from Lepomis pallidus. Plasmodium. 
X1250. 
Fig. 8. Henneguya sp. from Lepomis pallidus. Plasmodium 
with long fine pseudopodia. X1250. 
Fig. 9-10. Henneguya wisconsinensis from Lepomis pallidus. 
Developing spores showing how the tail is wound round the spore 
during development. X4100. 
PLATE III. 
Fig. 11. Henneguya wisconsinensis from Micropterus sal- 
moides. Spore showing the polar capsules, curved caudal fila¬ 
ments, nuclei of capsueogenous cells near the respective cap¬ 
sules, valve cell nuclei near the caudal filaments and a single 
nucleus in the sporoplasm. The longitudinal lines represent the 
ridges on the spore envelope. X4100. 
Fig. 12. Henneguya sp. from Lepomis pallidus. Spore 
showing polar capsules, filaments, tail and sporoplasm. X4100. 
Fig. 13. Henneguya wisconsinensis from Salvelinus fonti- 
nalis. Three spores in a plasmodium showing the long caudal 
filaments of each spore bursting through the protoplasm of the 
plasmodium. X2500. 
Fig. 14. Henneguya wisconsinensis from Lepomis pallidus. 
Spore showing caudal filaments still united, the polar capsules 
containing the coiled polar filaments and the sporoplasm con¬ 
taining two nuclei. X4100. 
Fig. 15. Myxidium salvelini from Salvelinus fontinalis. 
Spore showing two polar capsules, one with polar filament partly 
extended, sporoplasm containing two nuclei. The longitudinal 
ridges on the spore envelope are shown by lines. X4100. 
Fig. 16. Henneguya wisconsinensis from Lepomis pallidus. 
Plasmodium containing a single spore the caudal filaments of 
which are bursting through the protoplasm. 
