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THE ANATOMY OF VERTEBRATED ANTMAL3. 



anus and the vulva of the female are surrounded by a common 

 fold of integument. The clitoris has no bone. The body of 

 the uterus is divided by a longitudinal septum. 



H. The Prohoscidea. — These are massive animals, walking 

 upon the extremities of the five toes, with which each foot is 

 provided, and upon a great tegumentary cushion which unites 

 these, and forms a flat sole behind them. 



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The nose is prolonged into a flexible proboscis, which is at 

 once a strong, and a delicate, organ of prehension. The hairy 

 covering is scanty in the recent species ; but there were abun- 



