1889.] The Proboscidia. 193 
four species, thoug-h a fifth species, D. sindiensc Lyd., from In- 
dia, may belong-, according to Lydekker, to another genus. 
The Dinotheriuni indiawi Falc. is known from a few teeth, 
which exceed in size those of the other species. The D. gi- 
ganteum Kaup is found in several Miocene deposits of Europe. 
It was one of the largest of Mammalia, its femur exceeding 
in dimensions that of any other land mammal. The inferior 
incisors were robust and cylindric in form. With the sym- 
physis of the lower jaw they are decurved so as to form a 
most effective instrument for the tearing up of trees by the 
roots, or the pulling down of their branches The temporal 
fossa is lateral, and the top of the head flat. The premaxillary 
region though toothless, is prominent, and the nasal bones do 
not project. There is supposed to have been a short trunk. 
The skull measures three feet eight inches in length. (Plate 
wo smaller species are known, the D. bavaricum from Euro- 
'ean, and D. pentapotamicB from Indian Miocene beds. 
In Dinotherium all the molars and premolars have two 
ransverse crests excepting the first (posterior) premolar, and 
s deciduous predecessor, which have three cross-crests. 
The genera of the Elephantidae are the following : 
jperinr incisors with enamel-band Tetrabelodon Cope. 
