The Pineal Region in Teleosts. 



345 



E S 



Fig. 19. Section no. 542 of the same series as in figure 18. X 21. 



Fig. 20. Median section of the pineal region of Ameiurus. Length 10 mm. 

 H.E.C., series no. 388, constructed from sections nos. 89-92. X 290. 



