UNICELLULAR ANIMALS 



167 



Fig. 83. — Two Species 

 of Challengeron 

 (After Haeckel.) 



Fig. 82. — Ccelodendrum, 



BORGERT.) 



(After 



Fig. 84. — Euphysetta 

 (After Borgert.) 



Fig. 85. — Conchidium 

 (After Borgert.) 



Fig. 86. — Tuscarora. 



Fig. 87. — Noctiluca. 



