SEA-FISIIERIES LABORATORY. 



127 



the blind side. The anterior part of the dorsal fin, 

 with its underlying body muscles and skeleton, has been 

 cut away, and the roof and left part of the cranium have 

 also been removed. The tumour is now seen to be more 



Fig. 6. Flounder with Lympho-sarcoma. Nat., size. 



extensive than its external appearance indicates. It fills 

 up the entire left orbit, forcing the eye out of its place. 

 All the eye muscles are present and are in nearly their 

 normal relations to the bulbus oculi. The inferior and 

 superior obliqui are not much different in position and 

 length from the same muscles in a normal fish : their 



