' Fauna Antiqua Sivalensis,' pi. xl. figs. 2, 2 a (as N. 

 latidens), and noticed by the present writer, op. cit. p. xiv. 



No history. 



M. 3433. The germ of the fourth right upper milk-molar ; from 

 Perim Island. This specimen differs from the last in 

 having accessory tubercles on the outer side of the median 

 longitudinal valley ; there is a strongly-marked inner 

 cingulum. Presented l>y Col, J. W. Watson, 1886. 



M. 3434. The partially-worn and broken fourth right upper milk- 

 molar; from Perim Island. This specimen agrees pre- 

 cisely with the last. 



Presented by Col J. W. Watson, 1886. 



M. 2817. The germ of the first left upper true molar ; from Perim 



(Pig.) Island. Figured by Falconer and Cautley, op. cit. pi. xl. 



figs. 3, 3 a (as M. latidens}, and by the present writer, op. 



cit. vol. iii. p. xv, fig. 5, the latter figure being reproduced 



in the accompanying woodcut (fig. 17). No history. 



Fig. 17. 



Mastodon cautleyf.-Tte first left upper true molar in an unworn condition- 

 from the Siwaliks of Perim Island. \. The lower border of the figure is 

 the inner border of the specimen. 



TL 2887. Cast of the germ of the first three ridges of the second 



ight upper true molar. The original is from Perim Island, 



I is preserved in the Indian Museum, Calcutta (No A 



