PALMIPEDES, 405 
Uria, Briss. et Illig.(1) 
The Guillemots have a bill, which, though of the general form 
of the preceding, is covered with feathers down to the nostrils; there 
is also an emargination at the point which is somewhat arcuated. 
Their chief character, however, consists in the absence of the thumb. 
Their wings, much shorter than those of the divers, scarcely enable 
them to flutter. They feed on fish, crabs, &c. and are found among 
rocky precipices when they breed. 
The large species called the Great Guillemot, Colymbus troile, 
L., Enl. 903; Brit. Zool., pl. H; Edw. 359, 13; Frisch, 185, is 
the size of a Duck, the head and neck brown, back and wings 
blackish, and a white belly; there is a white line upon the wing 
formed by the tips of the secondary quills. It inhabits the ex- 
_ treme North, although it breeds on the rocky coasts of England 
and Scotland. In very hard winters it is seen on those of 
France. o 
There is a smaller species which is black, with the upper 
part of the wing white, Col. Grylie, L.; Vieill. Gal. 2943 Choris., 
Voy. aut. du M., Isles Aleut., pl. xxii, sometimes mottled 
throughout with white, C. marmoratus, Frisch, Suppl. B., pl. 
185, Edw. 50 and Penn., Arct. Zool., II, xxii, 2. Individuals 
“are sometimes seen, all white, C. lacteolus, Pall.(2) 
We may also separate from the Guillemots the 
Pia 
oy Crpuus,(3) 
Vulgarly called Greenland Divers, which have a shorter bill with 
a more arcuated back, but without any emargination. The symphysis 
of the lower mandible is extremely short. Their wings are larger, 
and the membranes of their feet well indented. 
The species most known, called the Little Guillemot or Green- 
land Dove, Colymbus minor, Gm.; Enl. 917; Mergulus Alle, 
Vieill. Gal. 295; Brit. Zool. pl. H, 4, f. 1; Edw. 91; Naum. 
Ed. I, 65, f. 102, is the size of a large Pigeon, black above, 
- (1) Uria, the Greek, or rather Latin name of an aquatic bird which appears to 
have been either a Diver ora Grebe. Guillemot, the English name, would seem 
to indicate its stupidity. 
(2) Add the G. a grosbec {Uria Prunnichii, Sabine), Choris, Voy. aut. du M. pl. 
xxi;—Uria lacrymans, Lapil., Ib., XX11J—consult the article inserted there on this 
genus by M. Valenciennes. 
(3) Cephus, the name of some sea bird often mentioned by the Greek writers, 
which appears to have been a species of Petrel or Gull. Mehring, and subse- 
quently Pallas, applied it to the Divers and Guillemots. Vicillot has changed it 
into Mergulus, Gal. 295. 
