PLATE XLl. 
Fig. 1. Mastodon (Tetralophodon) pkrimensis, Falc. & Caut. Second left lower true 
molar : from the Punjab. 
Fig. %. Mastodon (Tetralophodon) sjvalensis, Pale. & Caut. Third left ujjper milk- 
molar : from the Siwaliks. 
Fig. 3. Mastodon (Tetralophodon) perimensis ? Falc. & Caut. First right upper milk 
molar : from the Punjab. 
Fig. 4. Mastodon (Tetralophodon) perimensis^ Falc. & Caut. Second right upper true 
molar : from the Punjab. 
All the specimens are drawn of the natural size. The upper molars are viewed from 
the inner side. The lower molar is viewed from the outer side. 
