ENDOCRINE SYSTEM OF TYPHLOMOLGE RATHBUNI. 313 



anterior, the largest part of the entire organ, the individual tubes 

 are discernible more distinctly than in the Ambystomida?. They 

 take an antero-posterior course and are arranged parallel to each 

 other (Fig. 9). In the spaces separating the individual tubes, 



&V!frtf .l W 



FIG. 9. Transverse section through the hypophysis of Typhlomolge 7. b, blood 

 vessel; O-infundibuIum; i.w., infundibular wall; L, lumen of individual tube- 

 p.t., left pars tuberalis (of the right pars tuberalis this section contains only the 

 connective tissue sheet of the ventral surface). Sh, connective tissue sheet, t, 

 individual tube of pars anterior. X 340. 



large blood vessels are located. Frequently the individual tubes 

 possess a distinct lumen ; the nuclei of the cells are located at the 

 distal end of the cell, towards the lumen of the tube. The cell 

 walls are sometimes very distinct. The anterior end of the pars 

 anterior continues into two lateral processes, the partes tuberales, 



