640 PROCEEDINGS OF THE NATIONAL MUSEUM. vou 59. 



Figs. 8-9. Camelops, species indeterminable. Lower left third molar. X.66: 



8. View of inner face. 



9. View of grinding surface. 



Plate 117. 



All the figures are of approximately the natural si?e. 



Fig. 1. Odocoileus, species indeterminable. Distal end of cannon bone and first 

 phalange. 

 2. Marmota monax. Left side of lower jaw. 

 Figs. 3-5. Marmota arrodens. XL 



3. Right side of mandible, with incisor. Type. 



4. Left ramus, with incisor. 



5. Right humerus, front view. 



Fig. 6. Marmota monax. .Right humerus, front view. 



7. Marmota arrodens. Right ulna. 



8. Marmota monax. Right ulna. 



9. Marmota arrodens. Right radius. 

 10. Marmota monax. Right radius. 



Plate 118. 

 All the figures are of approximate! y the natural size. 



Fig. 1. Marmota arrodens. Upper end of left femur, rear view. 



2. Marmota monax. Upper end of femur, rear view. 

 Figs. 3, 4. Marmota arrodens. Tibiae: 



3. Left tibia. 



4. Right tibia. 



Fig. 5. Marmota monax. Right tibia. 

 Figs. 6-8. Marmota J! aviv enter. Skull: 



6. Skull seen from above. 



7. Same skull seen from below. 



8. Frontal bone of another skull. 

 Figs. 9, 10. Thomomys fuscus. Front of skull. 



9. Seen from below. 

 10. Seen from right side. 



Fig. 11. Equus occidentalis? Upper right second premolar. 



12. Equus giganteus? Part of an anterior fossette of upper left tooth. 



Plate 119. 



Figs. 1-2. Taridea laxus. Left ulna. XL 



1. Inner face. 



2. Outer face. 

 Figs. 3-5. Taxidea robusta. 



, 3. Inner face of left ulna. X 1. 



4. Outer face of left ulna. X 1. 



5. Part of right ischium and pubis, showing upper face. X .5. 

 Figs. 6-11. Thinobadistes segnis. Foot bones. X .5: 



6. Right second metacarpal, seen from below. 



7. Right navicular, seen from behind. 



8. Right third metatarsal bone, seen from left side. 



9. Right fourth and fifth metatarsal bones, seen from below. 



10. Second phalange of right hinder median digit, from above. 



11. Base of ungual phalange of hinder third digit, from behind. 

 Fig. 12. Camelus arctoamericanus. Anterior first phalanx, seen from rear. X .7. 



