344 ILLINOIS BIOLOGICAL MONOGRAPHS [344 



EXPLANATION OF PLATE 



Fig. 153. — Ophiotaenia punka (Cholodkovski), head, toto. After Cholod- 

 kovski. 



Fig. 154. — Monticellia malopteruri (Fritsch), head, toto. After Fritsch. 



Fig. 155. — Ophiotaenia cahnettei (Barrois), head, toto. After Schwarz. 



Fig. 156. — Ophiotaenia caliiiettei (Barrois), head, toto. After Marotel. 



Fig. 157. — Monticellia diesingii (Monticelli), head, toto. After Monticelli. 



Fig. 158. — Proteocephalus agonis (Barbieri), head, toto. After Barbieri. 



Fig. 159. — Proteocephalus cyclops (v. Linstow), head, toto. After vx)n Linstow. 



Fig. 160. — Ophiotaenia pigmentata (von Linstow), head, toto. After von 

 Linstow. 



Fig. 161. — Proteocephalus osculatus (Goeze), head, toto. From Cams after 

 Wagener. This appears to be a reproduction of Goeze's figure. 



Fig. 162. — Proteocephalus osculatus (Goeze), young individual, toto. From 

 Carus after Wagener. 



Fig. 163. — Proteocephalus osculatus (Goeze) =Taenia alternatiin transverse 

 lineata, posterior proglottids, toto. After Goeze. 



Fig. 164. — Proteocephalus osculatus (Goeze) =7"a^»ia alternatini transverse 

 lineata, head and regions of strobila. After Goeze. 



Fig. 165. — Proteocephalus osculatus ( Goeze) ^=Taenia alternatini transverse 

 lineata, head, toto. After Goeze, 



