PLATE XV. 
1. Equus sivalensis. Falc. and Caut. Fragment of the right maxilla of a colt, about 
one year old, showing the three last milk-molars (mm. 2 to mm. 4), and the germ 
of the first true molar. From a specimen collected by Mr. Theobald in the top- 
most Siwaliks of the Hushiarpur district. (No. C. 182, Ind. Mus.). 
2. Equus namadicus. Falc. and Caut. Fragment of the right maxilla of a colt, about 
two years old, showing the first milk-molar (m. 1), parts of the second milk-molar 
and second premolar (mm. 2. pm. 2), the third and fourth milk-molars (mm. 3 
mm. 4), and the first true molar (m. 1). From a specimen collected in the Nar- 
bada valley by Mr. Hacket, (No. F. 3, Ind. Mus.). 
3. Equus namadicus. Falc. and Caut. Fragment of the left maxilla, showing the base 
of the first premolar (pm. 1), the three latter premolars (pm. 2-4), and the first 
true molar (m. 1). The teeth are in an early state of wear. From a specimen 
collected by Mr. Hacket in the Narbada valley. (No. F. 2, Ind. Mus.) 
4. Equus namadicus. Falc. and Caut. Fragment of the right maxilla, showing three 
premolars (pm 2. to 4), and the first true molar (m. 1 ) ; the teeth are well worn. 
Collected by Mr. Theobald in the higher Siwaliks of the Kangra district. (No. C. 
195, Ind. Mus.). 
All the specimens are represented of the natural size. 
