GEN'. 315-323 OF KEY. 115 



614. PODILYMBUS PODICEPS (L.) Lawr. 



Pied-billcd ]>s&l>cliick. 



615. ALCA IMPENNIS L. 



Oreat Auk. 



[Extinct ?] 



616. UTAMANIA TORDA (L.) Leach. 



Razoi'-1bilfle<l Auk. 



617. FRATERCULA CORNICULATA (Naum.) Gray. 



IXoi'iied Puffin. 



618. FRATERCULA ARCTICA (L.) Steph. 



Common Puffin; §ea, Parrot. 



618a. FRATERCULA ARCTICA (L.) Steph., 

 var. glacialis (Leach) Coues. 

 liargre-lvilled Puffin. 



619. FRATERCULA CIRRHATA (Pall.) Steph. 



Tufted Puffin. 



620. CERATORHINA MONOCERATA (Pall.) Cass. 



Horn-billed Auk. 



621. PHALERIS PSITTACULA (Pall.) Temm. 



Parroquet Auk. 



62». SIMORHYNCHim CRISTATELLUS (Pall.) Mkrrkm. 

 Cr^ettted Auk. 



62S. SIMORHYNCHUS CAMTSCHATICUS (Lepe«h.) gciiL. 

 lE^hi^kered Auk. 



624. SIMORHYNCHUS PUSILLUS (Pall.) Coues. 



I£no1»°l>llled Auk; I^east Auk. 



625. PTYCHORHAMPHUS ALEUTICUS (Pall.) Brandt. 



Aleutian Auk. 



