The Pineal Region in Teleosts. 



337 



p c 



Fig. 13. Median section of the pineal region of Opsanus. Length 6.5 mm. 

 H.E.C., series no. 113, section no. 67. X 400. 



Fig. 14. Median section of the pineal region of an embryo Opsanus. Length 

 3.5 mm. H.E.C., series no. 107, section no. 50. X 500. 



Fig. 15. Pineal region of an Opsanus embryo of 15 mm. Median section. 

 H.E.C., series no. 1183, section no. 145. X 84. 



JOURNAL OF MORPHOLOGY. VOL. 21 NO. 3. 



