THE ORDER AMONG ANIMAL TYPES 



Order I. Insectivora. Moles, Hedgehogs, etc. 

 Order II. Edentata. Sloths, Anteaters, Armadillos. 



121 



MONOTREMATA 



MARSUPIALIA 



FIG. 72 DUCKBILL ^'^- ^^- KANGAROO YOUNG 



Fig. 72. — An egg-laying mammal, the Australian Duckbill. 

 Fig. 73. — Marsupial. An immature embryo of the Kangaroo attached to the ma- 

 ternal nipple in the marsupium. (After Parker and Haswell: Textbook, of Zoology, 

 published by The Macmillan Compay.) 



Order III. Chiroptera. Bats. 



Order IV. Rodentia. Rats, Rabbits, Mice, Squirrels, Beavers, 

 etc. 



