870 EXTINCT MAMMALIA OF NORTH AMERICA. 



Ursw, Leidy : Proc. Ac. Nat. So. 18.').'], 30.3. 



XJrsus americanus fossilis, Leidy : Waile's Rep. Agric. and Geol. Miesiseippi, 1854, 286 ; Jour. 

 Ac. Nat. So. Ill, 1856, 169. 



Pound with remains of Megalonyx, etc. Quaternary. 



XTrsus amplidens. 



Leidy : 'Proc. Ac. Nat. Sc. 1853, 303; Waile's Rep. &c. Mississippi, 1854, 286; Jour. Ac. Nat. 

 So. 1856, III, 168, PL XVII, 13-16. Cope : Proc. Ac. Nat. Sc. 1869, 3. 



Founded on the fragment of a lower jaw with the last molar tooth, from near 

 Natchez, Mississippi. Prof. Cope has recently discovered remains of this species in a 

 bone breccia, mingled with remains of the Tapir, Horse, Peccary, etc., in Wythe 

 County, Virginia. Post-pliocene. 



ARCTODUS, 

 Arctodns pristmtis. 



Leidy: Proc. Ac. Nat. Sc. 1854, 90; Holmes' Post-pliocene Fossils of South Carolina, 1860, 115, 

 PI. XXIII, figs. 3, 4. 



Indicated by the crown of a molar tooth of peculiar character, but most nearly 

 resembling the penultimate lower molar of the Black Bear. It was found in the post- 

 pliocene formation of the Ashley River, near Charleston, South Carolina. 



LEPTARCTUS. 



Ijeptarctns pirimus. 



See page 70, PL I, Figs. 15, 16. 



Leidy : Proc. Ac. Nat. Sc. 1856, 311 ; 1857, 90. 

 From Bijou Hill, below the mouth of White River. Pliocene. 



PROCYON. 



Procyon lotor. 



Leidy: Holmes' Post-pliocene Fossils of South Carolina, 1860, 115, PL XXIII, Fig. 1. 



A few traces in the post-pliocene deposit of Ashley River, South Carolina. 



Procyon priscns. 



Le Conte : Am. Jour. Sc. 1848, V, 106. Leidy : Jour. Ac. Nat. Sc. 1856, III, 169, PL XVII, 

 Figs. 17-24 ; Hall and Wliitney's Rep. Geol. Surv. Wisconsin, and Whitney's do. Upper 

 Mississippi Lead Region, 1862, 424. 



Procyon, Le Conte : Mem. Am. Acad. Arts, &c. 1848, III, 258. 



Remains found in crevices of the limestone, in the vicinity of Galena, Illinois. 

 Post-pliocene. 



