158 



Annals of the Carnegie Museum. 



Fig. I. Helaleles hoops, type. 



Fig. 2. Helaletes boops, type. 



Fig. 3. Helaleles boops, type. 



Fig. 4. Helaleles boops, type. 



Fig. 5. Helaletes boops, type. 



Fig. 6. Helaletes boops, type. 



Fig. 7. Helaletes boops, type. 



Fig. 8. Helaletes boops, type. 



Fig. 9. Helaletes boops, type. 



Fig. 10. Epihippus gracilis. 



Fig. II. Epihippus gracilis. 



Fig. 12. Epihippus parvus. 



Fig. 13. Epihippus parvus. 



Fig. 14. Epihippus parvus. 



Fig. 15. Epihippus parvus. 



Fig. 16. Epihippus parvus. 



Plate XLII. 



Tibia and fibula, fibular face. 



Pes, darsal face. 



Femur, anterior face. 



Radius and ulna, radial face. 



Calcaneum, anterior face. 



Metacarpals and magnum, anterior face. 



Astragalus, plantar face. 



Astragalus, dorsal face. 



Pelvis, external face. 

 Pes, dorsal face. C. M. No. 2923. 

 Tibia anterior face. C. M. No. 2923. 

 Hind limb, tibial face. C. M. No. 3397. 

 Pes, dorsal face. C. M. No. 3397. 

 Tibia, anterior face. C. M. No. 3397. 

 Crowns of upper dentition. C. M. No. 3397. 

 Crowns of lower dentition. C. M. No. 3397. 



All figures one-half natural size. 



