PLATE XXI 
A. W. Bgttkrwortu 
1 
Balfouria MONOGAMA 
Intestine of Marabou Stork showing cysts of Hal/oi*ria monogama, n. g., n. sp. 
1. Peritoneal surface, the cyst on the left side has been dissected to expose the contained worms 
2. Mucous surface of gut showing pores leading into the tumours 
