896 EXTINCT MAMMALIA OF NORTH AMERICA. 



of fossils. They are those upon which the name of " Mastodonte " was first applied 

 by Cuvier. Systematically expressed the term of Mastodon has become so familiar 

 in ordinary language, that it would be useless to attempt to substitute the earlier, 

 but less agreeable names of Mamonkum, Mammut or Harpaymotherium. Of specific 

 names, systematically expressed, that of americanus is the earliest I have been able 

 to discover, and being peculiarly appropriate is the one I have adopted. 



Mastodon mlriflcns. 



Sec page 249, PL XXV, Figa. 1, 2. 

 Leidy : Proc. Ac. Nat Sc. 1858, 10. 

 Mastodon ( Tetralophodon) mirificm, Leidy : Ibidem, 28. 



From the Loup Fork of the Platte River, and also reported to occur on the Nio- 

 brara River. Pliocene. 



Mastodon obscnms. 



See page 244, PI. XXVII, Figs. 13, 15, 16. 

 Mastodon angustidens, Meyer : Palseolog. 1832, 71 in part. ? Groom : Am. Jour. Sc. 1835, XXVII, 



170. Warren : Proc. Am. Assoc. Adv. Sc. 1850, 93 ; Desc. Skel. Mast. 1852, PI. XXVI. 



Gibbes ; Pr. Am. As. Adv. Sc. 1850, IIL 69. 

 Mastodon longirostris, Harlan : Am. Jour. Sc. 1842, XLIII, 143. Charlesworth : Lyell, in Proc. 



Geol. Soc. Lond. 1843, IV, 38 ; Am. Jour. Sc. 1844, XLVI, 322. Charlesworth and Harlan : 



In Lyell, on the Miocene, &c.. Quart. Jour. Geol. Soc. Lond. 1845, I, 427. 

 Mastodon longirostris, s. angustidens, Charlesworth : In Warren on the Mastodon, 1852, Append- 



175 ; 2d Ed. 1855, Ap. 203. 

 Tlie Baltimore Tooth, Warren : Desc. Skel. Mastodon, 1852, 78 ; 2d Ed. 1855, 92. 

 Cast of Mastodon Tooth, Leidy: Proc. Ac. Nat. Sc. 1858, 12; this work, 245, PI. XXVII, Fig. 13. 

 Fragments of Mastodon Teeth from, Tarboro, N. C, Leidy : This work, p. 247, PI. XX\T:I, Fig. 



16. 

 ? Mastodon giganteus, Emmons : Rep. N. Carolina Geol. Surv. 1858, 198, Fig. 23. 

 Mastodon of the Miocene, Emmons : Man. Geol. 1860, 216, 218, 237, Figs. 186, 205. 

 Tetralojjhodon, Emmons : Man. Geol. 1860, 237, Fig. 205. 

 Mastodon ? Leidy : The present work, p. 245, PI. XXVII, Figs. 13, 15, 16. 



Apparently a species distinct from the preceding, indicated by specimens from 

 North Carolina and Georgia. Other sjjecimens, from unknown localities, supposed, 

 however, to be American, probably belong to the same. One of the latter was refer- 

 red to a species by Dr. Hays under the name of 31. Chupmani* but Dr. Hays ex- 

 presses the opinion to me that this is distinct from the former. Under the circum- 

 stances I propose to distinguish the species represented by the undoubted American 

 specimens by the name heading this article. The species has been suspected to be of 

 miocene age. I have included it in the catalogue of quaternary mammals on page 

 oo7. 



* See page 248. 



