CONTENTS. XXXI 



Genus Lomvia , . . . 206 



Lomvia troile. Common Guillemot 206 



Lomyia bruennichi. Briinnicli's Guillemot 207 



Genus Ubia 207 



Ui'ia grylle. Black Guillemot 207 



Genus Mehgclus 208 



Mergulus aUe. Little Auk 208 



Genus FeateJicula 208 



Fratercula arctica. Puffin 208 



