262 VERTEBRATA 



FIG. 297. The duck mole or duck bill. Photograph one fourth natural size. 



two eggs about as large as those of a robin. The Echidnas, 

 of which there are two species, inhabit Australia and New 

 Guinea. The single egg deposited is placed in the abclomi- 



FIG. 298. Kangaroos. Thejone at the left shows the opening to the pouch. 



