56 



739. COLYMBUS FACIFICUS Lawk. 



Pacific Diver. [700.] 



740. COLYMBUS SEPTENTRIONALIS Linn. 



Red-throated Diver. [701.] 



741. ALCA IMPENNIS Linn. 



Great Auk. [710.] 



742. HTAMANIA TORDA (Linn.) Leach. 



Razor-billed Auk. [711. J 



743. FRATBRCULA ARCTICA (Linn.) Steph. 



Common Puffin. [715, 716. ] 



743a. FRATBRCULA ARCTICA GLACIALIS (Leach) Eidgw. 

 Large-billed Puffin. [714.] 



744. FRATERCULA CORNICULATA (Naum.) Gray. 



Horned Puffin. [713.] 



745. LUNDA CIRRHATA Pall. 



Tufted Puffin. [712.] 



746." CERATORHINA MONO CBR ATA (Pall.) Cass. 

 Horn-billed Puffin. [717, 718. ] 



747. PHALERIS PSITTACULA (Pall.) TemM. 



Parrot Auk. [725.] 



748. SIMORHYNCHUS CRIST ATELLUS (Pall.) Merrem. 



Crested Auk. [719, 720. ] 



749. SIMORHYNCHUS FYGMiEUS (Gmel.) Eidgw. 



Whiskered Auk. [721.] 



750. CICERONI A PUSILLA (Pall.) Eidgw. 



Least Auk. [722,723.] 



751. PTYCORHAMPHUS ALEUTICUS (Pall.) Brandt. 



Cassia's Auk. [724.] 



752. ALLE NIGRICANS Link. 



Sea Dove; Dovekie. [738.] 



753. SYNTHLD30RHAMPHUS ANTIQUUS (Gm.) Coues. 



Black-throated Guillemot. [736.] 



754. SYNTHLIBORHAMPHUS WURMIZUSUME (Temm.) Coues. 



Temminok's Guillemot. [737.] 



755. BRACHYRHAMPHUS MARMORATUS (Gm.) Brandt. 



Marbled Guillemot. [732,733.] 



756. BRACHYRHAMPHUS KITTLITZI Brandt. 



Kittlitz's Guillemot. [735.] 



757. BRACHYRHAMPHUS HYPOLBUCUS Xantus. 



Xantus's Guillemot. 



