170 Edward Phelps Âllis jr., The Lateral Sensory System in the Muraenidae. 



Fig. 5. Side view of the head of Myrus vulgaris, showing the pores of the lateral 

 sensory canals and the more evident svirface sense organs. Natural size. 



Fig. 6. Top view of the same. Natural size. 



Fig. 7. Bottom view of the same. Natural size. 



Fig. 8. Diagrammatic lateral view of the lateral sensory canals on the head of 

 the same, a few of the enclosed sense organs, that were distinctly evident, 

 alone being shown. Natural size. 



Fig. 9. Side view of the head of Muraena helena, showing the pores of the 



lateral sensory canals, and the more evident surface sense organs. 



Natural size. 

 Fig. 10. Top view of the same. Natural size. 

 Fig. 11. Bottom view of the same. Natural size. 

 Fig. 12. Diagrammatic lateral view of the lateral sensory canals on the head of 



the same, a few of the enclosed sense organs, that were distinctly evident, 



alone being shown. Natural size. 

 Fig. 13. Side view of the head of Conger conger, showing the pores of the lateral 



sensory canals, and the more evident surface sense organs, x '/j. 

 Fig. 14. Top view of the same, x ^l^. 

 Fig. 15. Bottom view of the same, x ^/2. 

 Fig. 16. Top view of the same, showing the lateral sensory canals and primary 



tubes. X '/2. 

 Fig. 17. Top view of the end of the snout of Conger, showing the ethmoidal and 



supraorbital lateral canals. Natural size. 

 Fig. 18. View of the end of the snout of Conger, taken from in front and below, 



showing the pores and surface sense organs of the region. Natural size. 

 Fig. 19. Part of a transverse section through the interorbital region of an 80 mm 



Conger, showing the olfactory nerve and related bloodvessels, x 40. 

 Fig. 20. Part of a transverse section through the auditory region of an 80 mm 



Conger, showing the squamosal lateral sensory canal, and the semicircular 



canals of the ear. x 40. 

 Fig. 21. Diagrammatic lateral view of the lateral sensory canals and surface sense 



organs of the head of Conger, showing also the peripheral portions of 



the nerves that innervate the organs. Natural size. 



