GEN. 311-314 OF KEY. 113 



605. COLYMBITS TOEQUATUS Brunn. 

 lioon; O-reat Nortlierii Diver. 



605a. COLYMBITS TOEQITATUS Beunn., 

 ■Bar. ADAMSii (Gray) Coues. 

 Tellow-iiilled liOon. 



606. COLYMBUS AECTICUS L. \ 

 JBIack-tliroated Diver. 



606a. COLYMBUS AECTICUS L., 

 var. PACiFicus (Lawr.) Coues. 

 Pacific Diver. 



607. COLYMBUS SEPTENTEIOWALIS L. 



Red-tbroated Diver. 



608. PODICEPS OCCIDENTALIS Lawr. 



'ff^estern Orelbe. 



60Sa, PODICEPS OCCIDElfTALIS Lawr., 

 var. CLABKn (Lawr.) Coues. 

 Clarke's Orebe. 



609. PODICEPS CEISTATUS (L.) Lath. 



■ Crested Orebe. 



610. PODICEPS GEISEIGENA (Bodd.) Gray, 



var holbOlli (Reinh.) Coues. 

 Red-necl&ed Crrebe. 



611. PODICEPS COEWUTUS (Gm.) Lath. 



Horned Orebe. 



612. PODICEPS AUEITUS (L.) Lath., 



var. californicus (Heerm.) Coues. 

 American Eared Orebe. 



613. PODICEPS DOMINICUS (L.) 



St. Doniing-o Crrebe. 



Check List Birds. 8 



