104 ILLINOIS BIOLOGICAL MONOGRAPHS [322 



PLATE VIII 



All figures magnified 44 times 



Fig. 30. Ventral view of anterior end of Cyclocoelum pseudomicroslomiim. 



Fig. 31. Ventral view of anterior end of Cyclocoelum braziliamim. 



Fig. 32. Dorsal view of anterior end of Cyclocoelum mutabile. 



Fig. 33. Ventral view of anterior end of Cyclocoelum leidyi. 



Fig. 34. Ventral view of anterior end of Cyclocoelum elongatum. 



Fig. 35. Ventral view of anterior end, of Cyclocoelum brazilianum, cirrus extruded. 



