EXPLANATION OF PLATE XX. 



Fig. 1-7. Paljeosyops paludosus. Figures one-lialf size. 



Fig. 1. Tibia of tbe right side, front view. From Grizzly Bnttos. Haydon's collection 



of 1870. 

 Fig. 2. Calcanonm, upper view. Fount! by Dr. Corson on Smitb's Fork of Greeu River. 

 Fig. 3. Astr.^galus, upper view. Found by Dr. Carter near Miller.sville. 

 Fig. 4. Cuboid, scaphoid, and osternal cuueiform. From Chnrch Buttes. Haytlcn's collection. 

 Fig. 5. Metatarsal. Found by Dr. Corsou near Fort Bridger. 

 Fig. 6. First phalanx. Found by Dr. Carter ou Henry's Fork of Green River. 

 Fig. 7. Second phalanx. Found by Dr. Carter near Fort Bridger. 



Fig. 8. PAL.E0SYOPS MAJOR : 



Portion of the right ramus of a lower jaw, one-half size. The specimen is somewhat swollen 

 and altered in character from disease, and is one of those ui^on which the sjiecies was first 

 indicated. Discovered by Dr. Carter at Grizzly Buttes. 



Figs. 9-11. MERYCOCHOiRUS RU.STICUS. Natural size. From Hayden's collection of the Sweetwater 

 River. 



Fig. 9. Lower extremity of the right tibia, front view. 

 Fig. 10. Astragalus of the right side, upper view. 

 Fig. 11. Calcaueum of the right side, upper view. 



Fig. 12. Merycochcerus(?) Natural size. 



Lower end of the right tibia of a smaller species than the preceding, with the specimens of 

 which it was found. • 



Fig. 13. Hipparion(?) Natural size. 



Eight cuneiform bone, ujiper view,*of a small equine animal. Specimen found with the 



remains of Merycochaerus just indicated. 

 Figs. 14-22. Remains from Texas, submitted to examination l>y Professor S. B. Buckley. 



All of the natural size. 



Fig. 14. HlPPARipN SPECIOSUM (?) 



Last upper molar of the right side ; view of the triturating surface. From Washington 

 County. 



Fig. 15. HipPARiON (f) 



A third or fourth upper molar of the left side. Found witli the preceding specimen. 



Fig. 16. Protoiiippu.s perditus (?) 



A second or third upper molar of the right side. From Independence, Washington County. 



Figs. 17, 18. PRbTOHIPPUS PLACIDUS(?) 



Fig. 17. A third or fourth upper molar of the right side. Found in association with the 



specimens of Figs. 14, 15. 

 Fig. 18. A first upper molar of the right side, probably of the same species as the former. 



From Bastrop County. 



Fig. 19. ANCiiiTriERiUM('?) australe: 



First upper molar of the right side. Found in association with the specimen of Fig. Ifi. 



FFg. 20. Protohippos : 



A lower molar of the riglit side. From Navarro County. 



