PALMIPEDES. 403 
moderate; the lower larynx is furnished on each side with 
a peculiar muscle. 
Co.tymsus, Lin.{1) 
The only particular character of the Divers is a smooth, straight, 
compressed and pointed bill, and linear nostrils; but the differences 
in the feet have caused them to be subdivided. 
5 Popicers, Lath.—Cotyrmsus, Briss. and Illig. 
The toes of the Grebes, instead of being palmated, are widened 
like those of the Coots, the anterior ones only being united at base 
by membranes. ‘The middle nail is flattened, and the tarsus strongly 
compressed. The semi-metallic lustre of their plumage has caused 
it to be occasionally employed as fur. Their tibia, as well as that 
of the succeeding subgenera, is prolonged above into a point which 
gives a more efficient insertion to the extensors of the leg. 
These birds live on lakes, &c., and build among the rushes. 
In certain circumstances, it appears that they carry their young ones. 
under their wings. Their size and plumage are so much changed 
vy age, as to have caused an improper multiplication of species. 
”M. Meyer reduces those of Europe to four. 
Col. cristatus, Gm., Enl. 400 and 944; Frisch, 183; Naum. 
69, F. 1063 Col. urinator, Gm., Enl. 941; Edw. 36 (The Crested 
Grebe), is the size of a ducks blackish-brown above, silver-white 
beneath; a white band on the wing; it acquires with age a double 
black tuft, and the adults have in addition a broad red collarette 
on the upper part of the neck, edged with black. 
“Col. cornutus, Enl. 404, 2; Col. obscurus, Enl. 942; and Col. 
caspicus, Gm., Vieill. Gal. 281; Edw. 145 (The Horned 
Grebe), resembles the preceding in form, but the collarette of 
the adult is black; its tufts and the front of its neck red. It is 
much smaller. 
Col. subcristatus; and the young, parotis and rubricollis, Enl. 
931; Lath. Supp. I, 118; Naum. 70, f. 107 (The Grey-cheeked 
Grebe), also has the front of its neck red, but the tufts of the 
adult are small and black, and its collarette very short and grey. 
Intermediate, as to size, between the two last. 
Col. minor, Gm. Enl. 905 (The Little Grebe), is as large as 
a Quail, and has neither crest nor collarette; its plumage is 
brown; more or less shaded with red, the breast and belly ex- 
cepted, where itis asilver-grey. The throat of the young bird 
is white. (2) 
(1) Colymbus, the Greek name of these birds. 
(2) Add the Pod. carolinensis, Lath., Catesb. 41, 91, Enl. 95;—the Gr. aux 
