EXTINCT MAMMALIA OF NORTH AMERICA. 395 



Tetracaulodon Collinsii, Hays : Ibidem. Graut : Ibidem. 



Tetracaulodon Godmani, Hays : Ibidem. Koch : Desc. of tlie Mis.sourium, Lond. 1841, .3 ; Proc. 

 Geol. Soe. Lond. 1842, III, 715; Rieseuth. d. Urwelt. 1845. Graut: Proc. Geol. Soc. Lond. 



1842, III, 771. Geinitz: Versteinerungskunde 1846, 36. 

 Mastotherium, Fischer : Bibliog. Palseont. 1834, 148. 

 Mastodon taplroides, Harlan : Med. Phys. Res. 1835, 262. 



Miasourian, Missurium, 3Mssouriuin, Koch: Am. Jour. Sc. 1839, XXXVII, 192 ; Fror. N. Notitz. 



1840, 104—106 ; Jahrb. Min. 1840, 736 ; Riesenth. d. Urwelt ; Desc. of the Missourium, St. 



Louis 1841 ; Ibidem, London, 1841. Nasmyth : Proc. Geol. Soc. Lond. 1842, 779. 

 Tetracaulodon, Hays : Proc. Am. Phil. Soc. 1840, I, 383 ; 1841, 102, 106 ; 1842, II, 183, 264 ; 



1843, III, 46 ; 1845, IV, 269. Owen : Proc. Geol. Soc. Lond. 1842, III, 690. Tetracaxdedon, 

 Horner : Proc. Araer. Phil. Soc. 1840, I, 308. 



Leviathan Missourii, Koch: Desc. of the Missourium, 1841, 13 ; Ibidem, Loudon, 1841, 17. 

 Tetracaulodon Tapyroides, Koch : Desc. Missourium, Lond. 1841. 

 Tetracaulodon Osagii, Koch : Ibidem. 



Tetracaulodon Kochii, Koch : Pr. Geol. Soc. Lond. 1842, III, 715, 716 ; Riesenth. d. Urwelt Ber- 

 lin 1845. Grant : Pr. Geol. Soc. Lond. 1842, III, 771. Nasrayth : lb. 776, 778. Geinitz : 



Versteinerungskunde 1846, 37. 

 Tetracaulodon Tapiroides, Koch : Ibidem. 

 Tetracaulodon Haysii, Grant: Pr. Geol. Soc. Lond. 1842, III, 771, Koch: Rieseuth. d, Urwelt 



1845. Geinitz : Verstein. 1846, 37. 

 Tetracaulodon BucMandi, Grant : Ibidem. Koch : Ibidem. 

 Mastodon Collinsii, Kauj) : Archiv f. Naturges. 1843, 174. Giebel : Fauna d. Vorwelt 1847, I, 



Pt. I, 207. 

 Missourium Theristocaulodon, Koch : Riesenth. d. Urwelt 1845. Geinitz : Verstein. 1846, 39. 

 Mastodon rugatum, Koch : Ibidem. 



Elephas Ohioticus, Blainville : Ost. Gen., Elephas, 1845, 261, 306. 

 Mastodon Ohioticus, Falconer and Cautley : Fauna Ant. Sivalensis, 1846, 16, PI. Ill, Fig. 9 ; Pis. 



XLII-XLV, 4. Bronn : Leth. Geog. 1853-6, III, 823, PL XLIV, Fig. 6. Kaup : Beitr. 



Urwelt. Sreugeth. 1857, I, 25. Editors: Canad. Jour. Ind. &c. 1858, IH, 356. Owen: 



Palseontology, 1859, 353. Leidy : Holmes' Post-pliocene Fos. South Carolina, 1860, 108, PI. 



XIX, Figs. 1, 2, 3 ; Proc. Ac. Nat. Sc. 1866, 290. Falconer : Quar. Jour. Geol. Soc. Lond. 



1865, XXI, 253 ; PaL-eont. Mem. 1868, I, 55, 84, 87, 424, PI. 7, Fig. 2 ; II, PL I, Fig. 2, PI. 



II, Fig. 2. 

 Dinotherium, Carpenter: Am. Jour. Sc. 1846, I, 249, 250. Holmes: Am. Jour. Sc. 1849, VII, 



197; Proc. Am. As. Adv. Sc. 1850, III, 203. 

 Elephas liupertianus, Richardson : Zool. Voy. Herald, 1854, 101 ; Referred to Mastodon, 141 ; 



Am. Jour. Sc. 1855, XIX, 131. 

 Mastodon {Trilophodon) Ohioticus, Falconer: Quar. Jour. Geol. Soc. London, 1857, 312-321; 



PaL-eont. Mem. 1868, I, 87 ; II, 6-19. 

 Mastodon Aniericanus, Leidy : Proc. Ac. Nat. Sc. 1868,^175. 

 Trilophodon Ohioticus, Falconer : Palseont. Mem. 1868, II, 176, 204. T. ohiaticus. Cope : Cook's 



Geol. N. Jersey, 1868, 740. 



Remains of the ordinary American Mastodon have been found throughout the con- 

 tinent of North America. From their size and frequency they are the most familiar 



