SOME EARLY MAMMALS 263 



bones are still missing, enough is known to justify a tentative re- 

 storation such as is shown in our Plate XLIII. See the specimens 

 in the Fossil Mammal Gallery, Natural History Museum. Dr. C. 

 W. Andrews proposes a new order, viz. the Barypoda (or heavy- 

 footed beasts), to distinguish this creature from such of its allies 

 as the Dinoceras and the Elephants. The affinities of Arsinoe- 

 therium are at present unsettled, but it may possibly be related 

 to the order of ungulates known as Hyracoidea, and at the present 

 day represented by the Syrian Hyrax or coney. It is an isolated 

 and a primitive group, probably related to the Phenacodus, as 

 well as to the order Amblypoda. Queen Arsinoe, a Greek Queen 

 of Egypt, had her palace near where the bones were found ; hence 

 the name. The horn-cores in the skull are formed by a hollow 

 shell of bone. The height of the creature was 5 feet 9 inches at 

 the withers, and the length about 9 feet 9 inches from the snout 

 to the rump. 



