GEN. 247-250 OF KEY. 93 



477. CYGNUS AMERICANUS Sharpless. 



478. ANSER ALBIFRONS G.M., 



var. GAMBELi (_II;irtl.) Cs. 

 Aiuei'icsftii ^Vlaite-fronted Groose. 



479? Al^rSER CJERULESCEWS L. 



480. AUrSER HYPERBOREUS Pall. 



Siio^v Grooise. 



480a. AWSER HYPERBOREUS Pall., 

 var. ALBATUS (Cass.) Cs. 

 liesser iinow €rOose. 



481. ANSER ROSSII Bd. 



Moss' tJoose. 



482. PHILACTE CANAGICA (Sevast.) Bann. 



Painted <i^oose. 



[483.] BRANTA LEUCOPSIS (L.). 

 ISai'EBacle Ooose. 



484. BRANTA BERNICLA (L.). 



JSrant €^oose. 



485. BRANTA CANADENSIS (L.). 

 Canada Coose ; l^Vild 4^oose. 



485a. BRANTA CANADENSIS (L.), 

 var. LKUC0PAREL\ (Braudt) Cs. 

 ^^liite-collarecl Choose. 



485b. BRANT A CANADENSIS (L.), 

 var. HUTCHiNsii (Rich.) Cs. 

 Hutelains' Ooose. 



