A434 : APPENDIX. 
location of several American species, which truly belong to the 
Aryicota, Cuy. or Hypupzus of Illiger. 
é 
X. 
Add, of American species, Hypudceus xanthognatus, Leach;—Hyp. 
riparius? Ord. A subdivision of this group will embrace the Hyp. 
hispidus (Sigmodon, Say), and Hyp. messor, L. C: and another sub- 
division, Hyp. floridanus (Neotoma, Say), and Hyp. gossipinus, L. C. 
KI. 
Here should come the new genus Psammomys, Le Conte, described 
Ann. Lyc. Nat. Hist. of New York, III, 3, pl. 2,, which differs from 
all the preceding in the form of the jaw teeth. The eyes are very 
small, and the ears scarcely visible. It burrows like the Sorex. 
But one species has-yet been found—P. ‘pinetorum, L. C.—which 
inhabits the pine forests of Georgia. Its hair is a dark shining 
cinereous colour, tipped above with brown, beneath a very pale ash; 
head large and blunt; tail round and hairy.(1) 
XII. 
~~ 
Cathartes aura. (Turkey Buzzard.) Black, with a bluish gloss; 
neck feathered equally all round; head red, bill white. The other 
species Cathartes iota, Vieill. which by our author »is arranged in 
the genus Percnopterus, undoubtedly belongs to, thewape genus with 
the C. aura. Its vulgar name is the Carrion Crow. Its colour is 
black, neck more feathered above than beneath; head black; bill 
horn-colour. * Both these species are common in the warm parts of 
our country: the first, however, ranges more to the north than the 
other; it is sometimes seen at New York. They prey upon carrion 
and excrementitious matters, but never attack living animals except 
they perceive them helpless or unable to defend themselves. 
XIII. 
These citations, from F. pennsylvanicus, Wils. to F. hyemalis, Wils. 
(1) On examining the work of Ruppel lately received at the Ac. of Nat. Sc. of 
Philad., I find that he has anticipated Major Le Conte in the generic use of the 
word Psammomys. As the rule of priority should be inexorably adhered to in these 
cases, I would propose for the American animal the generic appellation of Piry- 
mys, or Pine-mouse. 
