GEN. 315-323 OF KEY. 115 



/6H. PODILYMBUS PODICEPS (L.) LAWR. 

 Pied-billed Dabchick. 



615. ALGA IMPENNIS L. 



Great Auk. 



[Extinct ?] 



616. UTAMANIA TOBDA (L.) LEACH. 



Razor-billed Auk. 



617. PBATEBCULA COBNICULATA (NAUM.) GRAY. 



Horned Puffin. 



618. PBATERCULA ABCTICA (L.) STEPH. 



Common Puffin; Sea Parrot. 



618a. PBATEBCULA ABCTICA (L.) STEPH., 

 var. GLACIALIS (Leach) Cones. 

 X.argre-billed Puffin. 



619. PBATEBCULA CIBBHATA (PALL.) STEPH. 



Tufted Puffin. 



620. CEBATOBHINA MONOCEBATA (PALL.) CASS. 



Horn-billed Auk. 



621. PHALEBIS PSITTACULA (PALL.) TEMM. 



Parroquet Auk. 



622. SIMOBHYNCHUS CBISTATELLUS (PALL.) MKRREM. 



Crested Auk. 



623. SIMOBHYNCHUS CAMTSCHATICUS (LEPECH.) SCHL. 



Auk. 



624. SIMOBHYNCHUS PUSILLUS (PALL.) COTJES. 



HLnob-billed Auk; JLeast Auk. 



625. PTYCHOBHAMPHUS ALEUTICUS (PALL.) BRANDT. 



Aleutian Auk. 



