BRITISH BIRDS. 
49 
GENUS 3. Uria, Brisson. 
Sp. 1. U. Troile. Linnceus . 
Syn. Colymbus Troile, Linn. Gmel. Uria Troile, Lath. Colymbus 
Minor, Gmel. Lomwia Hoieri, Ray, Will. Guillemot a Capu- 
chon, Temm. Le Guillemot, Buff. Foolish Guillemot, and 
Lesser Guillemot, English Authors. 
Sp. 2. U. Grylle. Linnceus. 
Syn. Colymbus Grylle, Linn. Gmel. Uria Grylle, and U. Lacteola, 
Lath. Colymbus Lacteolus, Gmel. Spotted Guillemot, and 
Black Guillemot, English Authors. 
GENUS 4. Mergulus. Ray. 
Sp. 1 . M. Melanoleucos. Ray. 
Syn. Mergulus A lie, Linn. Lath. Gmel. Uria A lie, Temm. Guille- 
mot nain, Temm. Le Petit Guillemot Femelle, Buff. Little 
Auk, Penn. Mont. Lath. Bewick. 
GENUS 5. Fratercula. Brisson. 
Sp. 1. F. Arctic a. Linnceus. 
Syn. Alca Arctica, Linn. Gmel. Lath. Fratercula Arctica, Shaw. 
A. Labradora, Lath. Gmel. Macareux Moine, Temm. Le 
Macareux, Buff. Arctic Puffin, Shaw. Common Coulter- 
nell, Flem. Puffin, Penn. Mont. Lath. Bewick. 
GENUS 6. Alca. Linnceus. 
Sp. 1 . A. Torda. Linnceus. 
Syn. Alca Torda, Lath. Gmel. Briss. 
h 
A. Pica, Linn. Gmel. A. 
