EXTINCT MAMMALIA OF NORTH AMERICA. 365 



separation, as has been stated. Placed in correspondence with an ilium of recent 

 Man it presents no distinctive character. The specimen may have been cotempo- 

 rary with the remains of extinct animals, with which it is said to have been found, 

 though it appears to me equally if not more probable that it may have fallen into the 

 formation, from an Indian grave above, at a comparatively recent date, and became 

 stained like the true fossils, from ferruginous infiltration. 



Prof. Whitney has lately given notice of the discovery of human remains with 

 those of extinct animals in California, but the notices are too brief to allow judgment 

 to be passed on the facts. 



Homo, or Man, is the only known genus of its family which has been recognized or 

 discovered. Consisting of a number of existing races and their varieties, as they are 

 usually distinguished, (or of species and their varieties, as they would appear to be, 

 parallel with many of the accepted species of other genera,) they probably originated 

 not the one from the other, but probably all originated or diverged from a common 

 primceval form, which yet remains to be discovered. Whether this will be recognized 

 as a distinct species of the same genus, or of another and closely allied genus, we 

 leave the future to tell. Up to the present time, in no part of the world have 

 remains been discovered which can be positively referred to an extinct species of 

 Homo; and in this continent, to the present time, no remains of Man have been 

 discovered which, with positive assurance, we can say were cotemporaneoua with 

 any of the undoubted extinct species of other mammals. 



No remains of extinct quadrumanous animals, belonging to another branch of the 

 primate order, have been discovered in North America. 



We may also add that no fossil remains of Bats, or of the order of Cheiroptera, have 

 been found on this continent. 



CARNIVORA. 



FELIDJE. 



FELIS. 



Felis atrox. 



Leidy : Proc. Amer. Phil. Soc, 1852, V, 261 ; Trans, do. 1852, X, 322, PI. 34 ; AVaile's Rep. Agric. 

 and Geol. Mississippi, 1854, 286. 



An extinct species, as large as the Lion, indicated by the ramus of a lower jaw, 

 containing the canine and molar teeth, found in association with remtiins of Mastodon 

 americanus, etc., near Natchez, Mississippi. Quaternary. 



