﻿Oc. Papers, Cai.. Acad. Sci., Vol. X 



[Van Denburgh 



Plate 45 







Heloderma susfectwn^ Gila Monster 



Fig. 1. Head from side, natural size, showing position of poison gland on lower jaw. 

 Fig. '1. Lower jaw bones, twice natural size, showing grooved teeth. 



