224 ILLINOIS BIOLOGICAL MONOGRAPHS [512 



EXPLANATION OF PLATE 



Fig. 71. Bolhrioccphalus scorpii, toto of two segments. 



Fig. 72. Bolhrioccphalus claviccps from Eupomotis gibbosus, toto of mature proglottides. 



Fig. 73. Bothriocephalus manubrijormis, toto of mature proglottides. 



Fig. 74. Clestobothrium crassiceps, segments showing spurious articulations. 



Fig. 75. Clestobothrium crassiceps, toto of mature proglottis. 



Fig. 76. Abothriiim riigosum, frontal section of mature proglottis. 



Fig. 77. Abothrium crassum, toto oi n\it proglottis of strobila from Cofc^5wz(5 chipeiformis. 



