Trans. Roy. Soc. Min. 



Vol. LI. 



Augusta Lamont : " The Lateral Sense Organs of Elasmobranchs."— Plate IV. 



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f; " 

 / s.o. 



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Mth. 



J"! 5. — Ampullary Canals of Raia radiata, dorsal surface, f n.s. 



Ampullary Canals of Raia radiata, 

 ventral surface, T n.s. 



