GEX. 315-323 OF KEY. 115 



614. PODILYMBUS PODICEPS (L.) Lawk. 



I*ie«l-l>iHe«l I>albeliick. 



615. ALCA IMPENNIS L. 



Oi'eat Aiik. 



[Extinct ?] 



61G. UTAMANIA TORDA (L.) Leach. 

 ISazoi'-lyilled A^iik. 



617. PRATERCULA CORNICULATA (Naum.) Gray. 



Horned Piidtiii. 



618. FRATERCULA ARCTICA (L.) Steph. 



Couinioii Piiflifli; §ea Parrot. 



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

 var. GLACiALis (Leach) Coues. 

 liargre-billed Piifliiio 



619. FRATERCULA CIRRHATA (Pall.) Steph. 



Tufted Piimn. 



620. CERATORHINA MOWOCERATA (Pall.) Cass. 



Slorii-billed Auk. 



621. PHALERIS PSITTACULA (Pall.) Temm. 



Parroquet Auk. 



622. SIMQiRHYNCHUS CRISTATELLUS (Pall.) Merreat. 



Crested Auk. 



623. SIMORHYNCHUS CAMTSCHATICUS (Lepech.) Schl. 



HVltiskered Auk. 



624. SIMORHYTTCHUS PUSILLUS (Pall.) Coues. 



I£no]b-]l>iIlled Auk; I^east Auk. 



625. PTYCHORHAMPHUS ALEUTICUS (Pall.) Brandt. 



Aleutian Auk. 



