242 ZOOLOGY. 
with claws of moderate size. It is covered with a soft fur, 
and is about half a metre (17-22 inches) long. Its habits 
are like those of a muskrat, frequenting rivers and pools in 
Fig. 282.— Duckbill. Australia. From Ltitken. 
Australia and Van Diemen's Land, sleeping and breeding 
in holes extending from under the water up above its level 
into the banks, and with an outlet on shore. It lives on 
Fig. 283.— a, Young Duckbill; b, young: Echidna; c, section of the ventral 
pouch. From Lutken. 
moUusks, worms, and water-insects. Young duckbills 
five cm. (2 inches) long have been found in their nests. 
The spiny ant-eater (Figs. 283, i, c, and 284) is repre- 
sented by three species, one inhabiting Australia, another 
Port Moresby, New Guinea, while the third form inhabits 
