CONTENTS. XXXI 



Page 

 Genus LOMVIA 206 



Lorn via troile. Common Guillemot 206 



Lornvia bruennichi. Briinnich's Guillemot 207 



Genus URIA 207 



Uria grylle. Black Guillemot 207 



Genus MERGULUS 208 



Mergulus alle. Little Auk 208 



Genus FRATERCULA 208 



Fratercula arctica. Puffin 208 



