PLATE XLIXa. 



Cranium and vertebral column of Hiiracotherititn renticolum. Natural size ; the specimen represented 



on plate XLIX c. Page G35. 

 Fig. 1. — Cranium from below. 

 Fig. 2. — Cranium from above. 



Fig. 3. — Mandible lacking right ramus from above. 

 Fig. 4. — The same as fig. 3 from below. 

 Fig 5. — Kight side of atlas ; imperfect. 



Fig. 6. — Axis from front ; a, posterior, and b, inferior views. 



Fig. 7. — Third or fourth cervical vertebra from front; a, posterior, and b, iuferior views. 

 Fig. 8. — First dorsal vertebra from front; a, posterior, and b, iuferior views. 

 Fig. 9. — A continuous series of fourteen dorsal and five lumbar vertebra;, seen from below. 

 Fig. 10. — Fifth dorsal vertebra from front ; n, from rear. 

 Fig. 11. — Eleventh dorsal vertebra from front ; b, from behiud. 

 Fig. 12b. — Fourteenth dorsal from behiud. 



Fig. 13.— Sixteenth dorsal vertebra from front ; a, posterior extremity. 

 Fig. 14b. — Third lun.bar vertebra from behind. 

 Fig. 15. — Fifth lumbar vertebra, anterior view. 



Fig. IG. — lieft mandihvdar ramus of Hi/racoiheriumangustidens var. A. Natural size, from above. Page 648. 



