MAMMALIA. 



325 



Pal&otfierium had incisors , canines -f > and molars . The 

 canines are longer than the incisors. The superior molars 

 are square, and the inferior molars have double crescents. 

 The nasal bones formed an arch as in the tapirs ; we know 

 about eleven or twelve species seven are found in the lacus- 

 trine eocene beds of Montmartre and the Isle of "Wight. 

 They are distinguished by their height, and by the propor- 

 tional development of the extremities. P. magnum was the 

 size of a horse (fig. 227), and P. minimum was not larger 

 than a hare. (Fig. 228.) The other species are found in 

 the lacustrine miocene beds of Sansan. It is probable that 

 the genus contained many more species. Fig. 229 repre- 

 sents the lower jaw and teeth of Palceotherium minus, from 

 the fresh-water limestone of Seafield, Isle of Wight. 



FIG. 229. Lower Jaw of Palseotherium minus, Isle of Wight. 



Anoplotherium had affinities with the rhinoceros, horse, hog, 

 hippopotamus, and camel: (fig. 231) the anoplother had forty- 

 four teeth, which formed a continued series without any 



FIG. 230. 



FIG 231. 



interruption; a character found now only in man and the 

 monkeys. "We count incisors, \;\ canines, \\\ molars, of 



