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AUGUST A LAMONT ON 



mandibular nerves can only be traced to their respective groups of ampullae from the 

 ventral side, the accompanying drawings (text-figs. 6 to 9) aim at representing the 



Text-fig. 7. — Ventral dissection of nerve-supply of ampullae, R. batis, natural size. 



I. B. Inner buccal ampullae. H. Hyoid ampullae. M. Mandibular ampullae. 



N.A. Nasal aperture. L.J. Lower jaw. o.b. Outer buccal nerve. 



two aspects of the nerve-supply as actually seen on dissection, and not at a theoretical 

 scheme of the whole as it would appear at one glance. 



In most cases the supplying nerve divides on approaching the ampullary group, 



