270 



PARASITES OF THE DOMESTIC ANIMALS 



Fig. 137. — Cooperia curticei; male at 

 right, female at left. *Vulva. xl5. 

 (After Ransom, BuU. No. 127, Bureau 

 An. Ind., U. S. Dept. Agr.). 



m 



Fig. 138.— Co- 

 operia curticei, 

 anterior portion 

 of body, lateral 

 view. x300. (Af- 

 ter Ransom,'Bull. 

 No. 127, Bureau 

 An. Ind., U. S. 

 Dept. Agr.). 



Fig. 139. — Ostertagia marshalli; male at right, female at 

 left, enlarged (after Ransom, Bull. No. 127, Bureau An. Ind., 

 U. S. Dept. Agr.). 



