Plate Vlllb. 



Figr. 5 — Filaria Pap511osa. 



(Cephalic extremity). 



a, Oral cavity. 



b, Two rings with four papil- 

 lae each, two in situ. 



c, Pharynx. 



d, Oesophagus. 



Fis, 6 — FiSaria Papillosa. 



(Caudal extremity of male) 



a, Spiculae. 



b, Anus. 



Figr. 7 — Heterakis Papiliosa. 



(Caudal extremity of male). 



a, Spiculae unequal length. 



b, Preanal sucker. 



c, Papillae. 



Fig:. 8 — Filaria Iiniiiitis. 



(Male), 



a, Cephalic extremity. 



b, Caudal extremity. 



