383 



Megal. 



Megalomus canadensis, Hall. Pal. N. Y. Vol. 2, Guelph, 



yt ^.-.--^^^^^^^K,^ ^Ao Geology of Canada, 



....^^^^^^^^ J42 ig(53^pg^ge333^fig 342, 



a cast of the interior of 



a specimen. Note. The 

 Gall or OuelpJi beds 

 overlie the Niagara, 

 lim e s t o n e in Upper 

 Canada. — V a' ^ 



Megalonyx dissi- 

 milis, Leidy. Cope. 



--^m^w^ms^^^ Proc. A. P. S. 1881. 



'Geo/. Cdn ^ -ASI^ffli^^^^ /s6S Port Kennedy cave. 



Megalonyx jeffersoni, Harlan. First described by Jeffer- 

 son to the Amer. Phil. Soc, Phila., 1797, claws, femur, ulna, 

 and radius, found in a cave in " Western Virginia " (Ken- 

 tucky.) Dr. Wistar, of Phila., and then Cuvier showed that 

 it was a gigantic Sloth, Many remains of it have been since 

 then found in our cave deposits, and more recently in the sand 

 beds of Oregon. It probably fed upon the upper foliage of 

 small trees which it bent down with its powerful arms, sup- 

 porting itself on its great tail. As its descendants grew 

 smaller they were obliged to climb, and those still extant in 

 South Amerca live wholly in the trees. (Collett's Indiana 

 Eeport of 1884, page 39, plate 5, figs. 1, 2. — See Appendix,) 



Megalonyx loxodon, Cope. ProceedingsAmer. Philos. Soc. 



Pleish 



Cope 





April 7, 1871, Vol. 12, p. 74, f. 1, 2. Sections of canine molars 

 of a gigantic sloth (2 a, profile of 2 from within) found in the 

 Port Kennedy cave, Chester Co., Pa. Compare M, dissimilisj 

 Leidy. — Post-pleiscene ? 



