Fig. 50 — Cylichnostonium Alveatuin, female, 

 natural size. 



" 51 — Cylichnostomum Poculatum, cephalic 

 extremity, female. 



'^ 52 — Cylichnostomum Poculatum, male, nat- 

 ural size. 



" 53 — Cylichnostomum Poculatum, female, 

 natural size. 



" 54 — Cylichnostomum Catinatum, cephalic 

 extremity, female. 



" 55 — Cylichnostomum Catinatum, male, nat- 

 ural size. 



' ' 56 — Cylichnostomum Catinatum, female. 

 natural size. 



" 57 — Cylichnostomum Elongatum, cephalic 

 extremity, female. 



'' 58 — Cylichnostomum Elongatum, male, nat- 

 ural size. 



" 59 — Cylichnostomum Elongatum, female, 

 natural size. 



'' 60 — Cylichnostomum Calicatum, cephali.^ 

 extremity, female. 



" 61 — Cylichnostomum Calicatum, male, nat- 

 ural size. 



" 62 — Cylichnostomum Calicatum, female, 

 natural size. 



Insertea 



between pages 



128 and 129 



PLATE 13. 



Fig. 1 — Heifer infested with flukes and lung 

 worms. 

 " 2 — Oesophagostoma Columbianurn, cephalic 



extremity. 

 ** 3 — Oesophagostoma Columbianum, caudal 



extremity male. 

 " 4 — Oesophagostoma Columbianum, caudal 

 extremity female. 



Inserted 



between pages 



141 and 142 



