194 
TETRAO OBSCURUS. 
the Tetrao rupestris, which we do not consider *4 
of 5 
- j_ J i> 
established, any more than the new species v» 
Brehm. The species of Lagopus, as might he inf® rr 
from their inhabiling high northern “ latitudes, * 
- D O" -vi uiiciu mili um iM 
common to both continents, with the exception «t v j, 
peculiar to the B rlfJ i( , 
the colo^ 
.d* 1 
red grouse, T. scoticus, which is peculiar 
islands, and which, from its not changing ~ 
of its plumage with the seasons, may be consider® 1 * 
forming the passage to the true Tetraones. Of 
there are lire in North America, each and all 
from the three European. Of the two Bonasia , 1,11 j, 
peculiar to the old, and the other to the new conti" 1 1 , 
the former having sixteen, the latter eighteen feat®® 
to the tail. Thus the entire number is seven in EU 1 " 1 '! 
while it is eight in North America. Setting asid® ^ 
two common to both, and the respective BonasiM m 
may consider the cock of the woods of Europe ‘‘"..-y 
parallel of the cock of the plains of America. yy 
black grouse, T. tetnx, will find its equivalent d 1 . ^ 
dusky grouse, T. obscarus; but the T. hybrid u s f, 
no representative in America, any more than th® ^ 
/ 1 / l» l'I» on n 1, r-t .a, n .. n a_i _ __ 1 nPl* a 
‘ J AUUL V CXIW** 1 
scoticus. These, however, are more than repla® e , /' 
to number, by the T. phasianellus, T. cupido, a* 1 
a o f 
canadensis, all American species, which have 
corresponding to them in the old world. J 
Perhaps no other naturalist has personally insp' 1 ,, 
all the known species of this genus of both conti 0 ®^ 
and having examined numerous specimens even of 
— — , - — — “‘i oj/v-vuur. ua v. v cu ” 
of the rarest, and possessing all but one in my.' 
collection, my advantages are peculiar for gi vl "j. if 
m nnA o’ noviliir nf fliia ..a* o t _ nqll t. 
monography of this interesting genus. Such a 
is my intention hereafter to publish, illustrated 
the best figures, and accompanied with farther “ c jf 
respecting their habits. Iu the mean time, I shall vaB 1 
state, that, being replaced in Africa by PterocU *; i 
in South America by Tinamus, all the known spe® ie jjjt’ 
grouse are found iu North America, or in Europ®> J 
ElirOllPlUl 111 SO mlmlti+inir Amo • fi>Am wlincp w! 
in nurui America, or in rii» u r 
European also inhabiting Asia ; from whose ele v , 
central and northern regions, yet unexplored, nw 
