510 MAMMALIA. 



Genus 11. — Pal^otherium. — Cuvier. 

 FossiL 

 Generic Character, — Incisors |, canines J— J^ grinders ^— ^ ; 

 total i-t. Incisors wedge-shaped and parallel; canines conical, 

 crossing each other; grinders square, with four roots, ridged 

 with enamel, separated from the canines by a vacant space ; 

 general form of the scull like that of the Tapir. 



* Pal^otheria. — Lower grinders set in double crescents. 



PalcEo titer ium medium. — Size of the wild boar ; feet long and 

 slender. 



** LoPHiDON. — Lower grinders with transversely ridged 

 crowns. 



Palaotherium giganteum. — Eight feet long. Found in alluvial 

 formations in the neighbourhood of Paris. 



Genus 12. — Tapirus. — Cuvier. 



Generic Character. — Incisory teeth \, canines J-J, grinders 

 J-J ; total 42. Intermediate incisors shorter than the exterior ; 



b — D ' 



a void between both the incisors and the canines and grinders ; 

 nose elongated, forming a small moveable proboscis, but not pre- 

 hensile like that of the Elephant ; eyes small ; ears long and 

 mobile ; fore feet with four toes ; hind feet with three ; all the 

 toes are provided with short round hoofs; tail very short; two 

 inguinal mammae. 



Tapirus Americanus.—Tuv. American Tapir. — ^Plate XVIII. 

 fig. 7.— Described, vol. II. p. 528. 



Family III. — Solidungula. 



With three kinds of teeth ; only one visible toe, and a strong 

 hoof on each foot. 



Genus 13, — Equus. — Linnaus. 



Generic Character. — Incisors ^, canines }-|, which are want- 

 ing in the females of some species, grinders ^-S; total 40. The 

 grinders are furrowed on each side with flat crowns, and several 

 ridges of enamel ; between the canines and grinders a vacant 

 space ; upper lip capable of considerable motion ; eyes large ; 

 ears rather large, pointed and erect ; feet with a single visible 



