Bulletin of the Museum of Comparative Zoology 

 AT HARVARD COLLEGE. 



Vol. XLV. No. 3. 



THE OPTIC REFLEX APPARATUS OF VERTEBRATES FOR 

 SHORT-CIRCUIT TRANSMISSION OF MOTOR REFLEXES 

 THROUGH REISSNER'S FIBRE; ITS MORPHOLOGY, ON- 

 TOGENY, PHYLOGENY, AND FUNCTION. —PART L THE 

 FISH-LIKE VERTEBRATES. 



By Porter Edward Sargent. 



With Eleven Plates. 



CAMBRIDGE, MASS., U. S. A. : 



PRINTED FOR THE MUSEUM. 



July, 1904. 



