630 Enphilus, Briaromys, Gyriabrus, Colpostemma, Strophosteplianus, Castoroides. 
718. fEuphilus, Amegh., 1889. 
Megamys, p., Am., 1886 — 1889. 
3875. tBurmeisteri, Amegh., Bol. Ac. Cordob., 
1886, p. 39; Mam. Fos., 1889, p. 206, 
pl. 26, tig. 2; Kev. Arg., 1891, p. 240 
et seq. 
3876. fAmbrossetianus, Amegh., Mam. Fos., 
1889, p. 903, pl. 72, fig. 7. 
fOligocaen vel 
Miocaen Argentina. 
f Oligocaen vel 
Miocaen Argentina. 
3877.f Kurtzii, Amegh., Mam. Fos., 1889, p. 904, 
pl. 72, fig. 13. 
f Oligocaen vel 
Miocaen Argentina. 
719. fBriaromys, Amegh., 1889. 
3878. f Trouessartianus, Amegh., Mam. Fosil., f Oligocaen vel 
1889, p. 904, pl. 72, fig. 15. Miocaen Argentina. 
720. t Gyriabrus, Amegh., 1891. 
3879. f glutinatus, Amegh., Kev. Argent., 1891, f Oligocaen vel 
p. 246. Miocaen Argentina. 
721. t Colpostemma, Amegh., 1891. 
3880. f sinuata, Amegh., Eev. Arg., 1891, p. 141, f Oligocaen vel 
fig. 40. Miocaen Argentina. 
722. t Strophosteplianus, Am., 1891. 
3881. Iheringi, Am., Eev. Arg., 1891, p. 142, f Oligocaen vel 
fig. 42. Miocaen Argentina. 
Familia XXL f CastoPoVdidae. 
723. t Castoroides, Forster, 1838. 
Castor, p., et Trogontherium, p., Dekay, 1842. 
3882. t ohioensis. Forster, Am. Journ. Sc., XXXI, 
1837 (1838), p. 80, fig. 15— 17; Leidy, 
Ext. Mamm. Fauna, 1869, p. 405 ; Cope, 
Amor. Natur., 1888, p. 6, fig. 3, 4, 6; 
Moore, Amer. GeoL, XII, 1893, p. 67, 
pl. III. 
f Pleistocaen America 
sept., United States 
(Indiana, Michigan, 
Texas, New-York, 
Carolina merid.) 
