THE LATERAL SENSE ORGANS OF ELASMOBRANCHS. 



485 



Text-fig. 6.— Dorsal dissection of nerve-supply of ampullae, E. hatis, natural size. 

 S.O. Superficial ophthalmic ampullae. O.B. Outer buccal ampullse. H. Hyoid ampulla:. 



S. Spiracle. N.C. Nasal capsule. 



i.b. Inuer buccal nerve. 



A.C. Auditory capsule. 



