324 



THE OSTEOLOGY OF ELOTHERIUM. 



'76. Kowalevsky, W. Osteologie ties Genus Eutelodon Ayin. Ibid., Bd. XXII, p 415. 



'53. Leidy, J. The Ancient Fauna of Nebraska. Smithsonian Contributions to Knowledge, 1853. 



'69. Leidy, J. The Extinct Mammalian Fauna of Dakota and Nebraska, Phila., 1869. 



'73. Marsh, 0. ft Notice of New Tertiary Mammals. Pt. II Arner. Journ. Sei., 3d Ser., Vol. V. 



'93. Marsh, 0. ft Description of Mioceae Mammalia. Ibid , Vol. 46. 



'94. Marsh, 0. ft Restoration of Elotherium. Ibid., Vol. 47. 



'95. Osbor/i, H. F. Fossil Mammals of the Uinta Basin. Bull. Amer Mus. Nat. History, Vol. VII. 



'47a. Pomel, A. Sur un nouvean Pachyderrne du Bassin de la Gironde (Elotherium magnum). Bull Soc. Geol. de 



France, Tom. IV, 1846-7. 

 '47J. Pomel, A. Surunnouveau genre de Pachydermes Fossiles (Elotherium). Bibl. Univ. de Geneve. Tom. V, 1847. 

 '87. Schlosser, M. Beitrage zur Kenntniss der Stamme=geschichte der Hufthiere. Morph. Jahrb., Bl. XII. 

 '96. Scott, IF. B. On the Osteology of Elotherium. Comte-Eend. d. Seances du 3 me Congres Internat. de Zoologie, 



Leyden, 1896. 

 '94. Zittel, K. A. Handbuch der Pateontologie. Bd. IV, Miinchen and Leipzig. 



Explanation of the Plates. 

 Plate XVII. 



Skeleton of Elotherium ingens Leidy, from the Titanotherium beds of South Dakota, about T ' r natural size. Only 

 the eighth thoracic vertebra and tie distal ends of certain ribs are conjectural. The tail may well have been considerably 

 longer, as only the vertebrae associated with the skeleton have been drawn. 



Plntr XVIII 



Fig. 1. Elotherium mortoni. Basal view of skull. ' nat. size. Ttj, tympanic bone ; <-. canal opening above and behind 



the posterior nares. 

 Fig. 2. Elotherium mortoni. Occiput from behind, ' nat. size. 

 Fig. 3. Elotherium in gens. Atlas, ventral side. 

 Fig. 4. Elotherium ingens Axis, left side. 



Fig. 5. Elotherium ingens. Fifth thoracic vertebra, from the front. 

 Fig. 6. Elotherium ingens. Last lumbar vertebra, from behind, es, episphenial process. 

 Fig. 7. Elotherium ingens. Anterior caudal vertebra, from above. 

 Fig. B. Elotherium ingens. (?) Fifth caudal vertebra, leftside. 

 Fig. 9. Elotherium ingens. Posterior caudal. 

 Fig. 10. ElotJierium ingens. Right ulna and radius. 



Fig. 11. ElotJierium ingens. Right maims, ii. second metacarpal (conjectural) ; v, fifth metacarpal. 

 Fig. 1-.'. ElotJierium ingens. Right pes. ii, v. second and fifth metatarsals. 



[Figs. 3-12 ure approximately \ nat. mi ■ '»'/ .</•< of bones belonging to tin skeleton figured in Plate XVII.) 



