10G CLASSIFICATION OF THE ANIMAL KINGDOM. 



CLASS V. -MAMMALIA (QUADRUPEDS). 



SUB-CLASS I. ORNITHODELPHIA. 

 ORDER I. MONOTREMATA. 



Fam. a. Ornithorhynchidae. Ornitliorhynclms (Duck- 



mole, fig. 94). 

 Fam. b. Echidnidse. Echidna. 



(Owen, Art. " Monot remata" Todd's Cyclopaedia Anat. and Phys., 

 1841 ; Meckel, Ornithomynchi paradoxi descriptio anatomica, 1826 ; Water- 

 house, A Natural History of the Mammalia, vol. i., London, 1846.) 



Fig. 94. Monotremata. Ornithorhynchus anatin-us, Australia. 



SUB-CLASS II. DIDELPHIA. 

 ORDER I. MARSUPIALIA. 

 Sub-ord. 1. Diprotodontia. 

 Section Rhizopliaga. 



Fam. Phascolomydre. Phascolomys (Wombat). 



