XXXI 
[Vol. X. 
Tetrao tetrix. ? . Archangel. Above rusty brown ; 
quills whitish ; breast and abdomen pale greyish. 
? . Finland. All the feathers from the neck down- 
wards white, with black centres. (This and the 
following vai’iety are often, on the Continent, considered 
to be hybrids between Tetrao tetrix and Lagoj)us ; but 
there is no foundation for this belief.) 
? . Novgorod. White from the neck dowmvai’ds, 
with black centres to the feathers above, and with black 
edges to most of those on the abdomen, 
Ferwx perdix. S- (Leadenhall Market.) Above pale 
grey ; all markings well developed ; forehead, super- 
ciliary stripe, and throat pale rufous ; breast whitish 
grey; abdomen white; horseshoe and cross-bars on 
hank-feathers very pale rufous. 
S . Brighton. Everywhere very dark, the dark 
markings on the upperside almost pure black. 
c? . Devonshire, 1860. Dark brown variety. Round 
the bill a black mask ; throat earthy brown ; below 
grey-brown, vcrmiculated with blackish brown ; no 
indication of a horseshoe.^^ 
cJ . Devonshire, 1860. Like the preceding one. but 
more rufous above and with much broader rufous bars 
on the sides. 
? . (Leadenhall Market.) Very dark variety. 
Markings above nearly pure black ; rufous cross- 
markings on sides rather broad. 
^ . (Leadenhall Market.) Head and neck buff, more 
rufous on the crown ; breast deep chestnut; middle of 
abdomen huffy white ; feathers of upperside mixed 
white, deep chestnut, and light grey, in beautiful 
contrast. 
3. (Leadenhall Market.) Generally pale ; above 
with much yellowish brown. 
. (Leadenhall Market.) Above very light ; chest 
and flanks of a most delicate light grey ; horseshoe and 
cross-bars on sides rich chestnut. 
