626. 
630. 
631. 
GEN. 324-328 OF KEY. 117 
MERGULUS ALLE (L.) Viet. 
Sea Dove; Dovelkie. 
. SYNTHLIBORHAMPHUS ANTIQUUS (Gm.) Branpr. 
Black-throated Guillemot. 
. SYNTHLIBORHAMPHUS 
WURMIZUSUME (Temm.) Covuzs. 
 Wemmineh’s Aula 
. BRACHYRHAMPHUS MARMORATUS (Gm.) Branpr. 
Miarbled Miurreiet. 
BRACHYRHAMPHUS KITTLITZII Branpr. 
Hiittlitz’s Viurrelet. 
URIA GRYLLE (L.) Brunn. 
Black Guillemot; Sea Pigeon. 
632. 
633. 
634. 
635. 
URIA COLUMBA (Patt.) Cass. 
Pigeon Guillemot. 
URIA CARBO (Patt.) Branpr. 
Sooty Guillemot. 
LOMVIA TROILE (L.) Branpt. 
Common Guillemot; Wdurre. 
LOMVIA ARRA (Patt.) Covzs. 
Thick-billed Guillemot. 
