UNICELLULAR ANIMALS 



167 



FIG. 83. Two SPECIES 

 OF CHALLENGERON. 

 (AFTER HAECKEL.) 



FlG. 82. CCELODENDRUM. (AFTER 



BORGERT.) 



FlG. 84. EUPHYSETTA. 



(AFTER BORGERT.) 



FIG. 85. CONCHIDIUM. 

 (AFTER BORGERT.) 



FIG. 86. TUSCARORA. 



FIG. 87. NOCTILUCA. 



