192 
aij.kn’s naturalist’s lirrary. 
£rrou?r'^n"f ^’P0>^ the bare 
a slight foundation of dead sedge or a 
little moss, is observable. ° ’ 
Eggs.— Two in number. Ground-colour dark olive or dark 
chocolate-brown, the latter sometimes so deep in ’tint that 
the spots are scarcely discernible. Sometimes^the eg-s are 
covered all over with small black dots, in other instant the 
^rots are larger and almost form blotches. On one eggfn the 
Bntish Museum there is a large blotch of brown. The under- 
SctTtlZ" «r^>'-'-black, and are about as 
disPnc^t as the overlying ones. Axis 2'6-3-o5 inches, diam. 
THE GREBES. ORDER PODICIPEDIDIFORMES. 
The Grebes have the same remarkable projection of the cne- 
mial process of the tibia as the Divers, and the same form of !he 
posterior process of the ilium described under the heading of the 
last-mentioned birds. The palate is schixognathous, fnd ihe 
nnrV,'? seventeen to twenty-one in number : the 
anchylosed sacral vertebrie are preceded by a free vertebra in 
front of which are four anchylosed dorsal vertebrse ; the nSan 
x^ho.d process of the sternum is abruptly truncated, To S 
the lateral processes extend behind it. The snina 
tract is not defined on the neck, and the ambiens and femoro- 
caudal muscles are wanting. icmoro- 
1 he bill IS long and pointed, and resembles that of the Divers 
from which the Grebes are at once distinguished by thdr E 
toes, and by their obsolete tail, which is not visible 
THE TIPPETED GREBES. GENUS L0PHA:THYTA. 
Lophaithyia, Kaup. Nat. Syst. p. 72 {1829). 
Type, L. crisla/a (Linn.). 
colteaeu^in^ cannot follovv the conclusions of my American 
TOl eagues in their determination of the generic names nf 
Cofymbin for the Grebes, and Urmator for the Divers, I must 
admit that their conclusion that the Little Grebe 
auct.), must be considered to be the type of the geifus 
Podicipes, seems to me to be indubitable. ^ ^ 
