3Iegalonyx, Gnathopsis, Morotheriuiri, Interodon, Proinegatlierium. 795 



8474. T leptostomus, Cope -- {6440); Matthew, jPliocaen. Texas. 

 Bull. Am. Mus., 1899, p. 75. 



■8475. jloxodon, Cope — ((J44i). f Pleistocaen. 



Peunsylvania. 



5476.f wheatleyi, Cope — (6442); id., Journ. fPleistocaen. 



Acad. Philad., 1899, p. 210—212. Pennsylvaiiia. 

 dissimilis, Cope, 1871 (nec Leidy). » 



sphenodon, Cope — (6443). » 



8477.ttortuIus, Cope — (6444). tPleistocaeu. 



Peunsylvania. 



M78.f rodens, Castro — (6445). fPleistocaen. Cuba. 



1618. t G-nathopsis, Leidy, 1852. 



Leidy, Proc. Acad. Philad., 1852, p. 117. 



8479.toweni, Leidy — (6446). fPliocaen. Patagonia. 



1619. t Morotlierium, Marsh, 1874. 

 Marsh, Amer. Journ. Se, 1874, VIT, p. 531. 



8480.tgigas. Marsh — (6447); Merriam, Bull, f^liocaen. et Pleist. 

 Geol. Soc. Amer., 1901, p. 614. California. 



8481.tleptonyx. Marsh — (6448). fPliocaen. Idaho. 



Familia IV. f IVIegatheridae. 



Subfam. 1. Megatherinae. 



1620. f Interodon, Amegh., 1885. 

 Ameghino, Bol. Acad. Cordoba, 1885, p. 117. 



8482.TCrassidens. Amegh. — (6449). f Oligocaen. 



Argentiua. 



8483.f antiquiis, Amegh. — (6450). f Oligocaen. 



Argentina. 



8484. t platensis. Krôyer — (6451). fPliocaen. Argentina. 



8485.f ortizianus, Amegh. — (6452). f Pliocaeu. Argentina. 



1621. f Promegatherium, x4megh.. 1888. 

 x^Lmeghino, Bol. Acad. Cordoba. 1883. p. 293. 



8486.f smaltatum, Amegh. — (6453). f Oligocaen. 



Argentina. 



