394 EXTINCT MAMMALIA OF NORTH AMERICA. 



Sc. 1841, 115. Hays : Proc. Am. Phil. Soc. 1841, 103. Plummer : Am. Jour. Sc. 1841, XL, 

 149. Harlan: lb. 1842, XLHL 143 ; 1843, XLV, 208. Horner and Hays: Trans. Am. 

 Phil. Soc. 1843, VIII, 37, Pis. I— IV. Hays : Proc. Am. Phil. Soc. 1843, III, 45 ; 1844, IV, 

 43 ; 1846, IV, 269. Chaloner : Proc. Ac. Nat. Sc. 1843, 321. Hayraond : Am. Jour. Sc. 

 1844, XLVL 294. Whipple: Proc. Am. Phil. Soc. 1844, IV, 35. Maxwell: lb. 118, 127. 

 Gray : Proc. Bost. Nat. Hist. Soc. 1846, 92 ; Am. Jour. Sc. 1847, III, 436. Hallowell : Proc. 

 Ac. Nat. Sc. 1847, 117, 130. Smith : Am. Quar. Jour. Agric. 1846, III, 19. Adams : Rep. 

 Geol. Vermont 1846, 87, Fig. 5. Anon. : Am. Jour. Sc. 1846, I, 268. Woohvorth : Am. 

 Quar. Jour. Agric. 1847, VI, 34, Fig. 2. Whittlesey : lb. 1848, V, 215. Tuomey : lb. 1849, 

 VIII, 71. Gibbes : Proc. Am. Assoc. Adv. Sc. 1850, III, 66. Holmes : lb. 203. Lathrop : 

 Am. Jour. Sc. 1851, XIII, 439. Cottle: lb. 1853, XV, 282. Blake: lb. 1855, XIX, 133. 

 Brevoort: Proc. Am. Assoc. Adv. Sc. 1859, XII, 232. Shumard : Trans. Ac. Sc. St. Louis 

 1860, 678. Wyman: Hall & Whitney's Rep. Geol. Surv. Wise, and Whitney's Rep. Geol. 

 Surv. Up. Missis. Lead Reg. 1862, 421. Winchell : Am. Jour. Sc. 1864, XXXVIII, 223, 

 224. Hayden : Proc. Ac. Nat. Sc. 1866, 316. Worthen : Geol. Surv. Illinois, 1866, 315. 

 Ohio-Elephant, Pander and D'Alton : Skel. d. Pachyd. 1821. 



Mastodon maximus, Cuvier: Ossem. Fos., 2d ed. 1824, V. Pt. 2, 527 ; 3d ed. 1824, V, Pt. 2, 527; 

 4th ed. 1836, X, 477. Cooper: Mouth. Am. Jour. Geol. 1831, 160, 206. Meyer: Palaeologica 

 1832, 70. Harlan : Ediub. New Phil. Jour. 1834, XVII, 343 ; Trans. Geol. Soc. Peun. 1835, 

 I, 47 ; Med. Phys. Res. 1835, 254. Foster: Sec. An. Rep. Geol. Surv. Ohio 1838, 79. De- 

 Kay : Nat. Hist. N. York, Zool. 1842, I, 102. Tuomey : Rep. Geol. S. Carol. 1848, 180, 205. 

 Bronn: Index Pal. 1848, L 706. 

 3Iastodon angustidens.* Harlan : Fauna Amer. 1825, 214. 



Tapirus mastodontoides, Harlan : Fauna Amer. 1825, 224 ; Edinb. New Phil. Jour. 1834, XVII, 

 351 ; Trans. Geol. Soc. Penn. 1835, 1, 59 ; Med. Phys. Res. 1835, 265. Pictet : Pal^ont. 1853, 

 I, 302. Tapir mastodontoides, Pictet : Pal^ont. 1844, 1, 268. 

 Tetraeaulodon mastodonioideum, Godman : Trans. Am. Philos. Soc. 1830, III, 478, 484, Pis. XVII, 



XVIII ; Jahrb. f. Min. 1831, 120. Meyer : Palseologica 1832, 13. 

 Mastodon Ohiotimm, Jahrb. Min. 1832, 355. Gervais : Zool. Pal. Francaises 1848 — 52, I, 187. 

 Tetraeaulodon brevirostre, Kaup : Isis 1832, XXV, 630 ; Jahrb. Min. 1833, 224. 

 Mastodon giganteus, Kaup : Ossem. Fos. 1832-9, 66, Atlas, PI. XX. Eichwald : Isis 1834, 682. 

 Bronn: Leth. Geog. 1838, 1235. Owen: Odontog. 1840-5, 616; Brit. Fos. Mam. 1846, 273 

 —278, Fig. 102 ; Proc. Ac. Nat. Sc. 1846, 93 ; Anat. of Vertebrates 1866, IL 441. Mantell : 

 Medals of Creation 1844, 832. Anon. : Am. Jour. Sc. 1846, II, 131. Geinitz : Versteiner- 

 ungskunde 1846, 35. Gibbes : Pr. Am. As. Adv. Sc. 1850, 95. Warren : Mastodon Gigant. 

 1852 ; 2d ed. 1855 ; Am. Jour. Sc. 1855, XIX, 349. Wyman : Am. Jour. Sc. 1853, XV, 48. 

 Leidy : Waile's Rep. Agric. and Geol. Mississippi 1854, 286. Editors : Am. Jour. Sc. 1862, 

 XXXIV. Dawson : Acadian Geology 1868, 83. 

 Mastodon Cuvieri, Hays : Trans. Am. Phil. Soc. Phila. 1834, IV, 334. Grant : Proc. Geol. Soc. 



Lond. 1842, 771. Koch : Riesenthiere d. Urwelt 1845. 

 Mastodon Jeffersoni, Hays : Ibidem. Grant : Ibidem. 



♦The tooth supposed by Dr. Harlan to belong to this species, and which he states is in the possession of Mr. 

 Wagner, I have seen, and am satisfied that it pertains to M. americanus. It is rather smaller than usual, but 

 the transverse angular hills, with the angular unobstructed valleys, are quite characteristic of the latter. 



