THE HYPOPHYSIS IN REPTILES 

 TABLE 1 



217 



cells present in the hypophysis could be explained by glandular 

 activity. 



In his paper on the hypophysis and infundibulum of verte- 

 brates, Haller ('96) found, in Lacerta lutaria, a small caudal 

 part and a cranial layer, both composed of tubules interwoven 

 with a vascular connective tissue. The tubules contain very 

 fine lumina. The cylindrical cells, light-staining and granular, 

 have a distally placed nucleus. The gland tubules of the caudal 

 part project upward and forward, as in Emys, and those of the 

 cranial part upward and backward. Some tubules open dor- 

 sally into a space, flattened dorso-ventrally, from the anterior 

 end of which is the opening leading to the subdural space 

 which Haller has described in all vertebrates. The hypophyseal 

 cleft is lined with gland cells. Lacerta differs from other rep- 

 tiles in having no anterior lobe, although the hypophysis may be 

 long, as in Chelonia. 



Edinger, ('99) briefly described the infundibulum and saccus 

 vasculosus of reptiles, and noted the close connection of the 

 hypophysis with the latter. 



