GEN. 247-250 OF KEY. 93 



477. CYGWUS AMEBICANUS Sharpless. 



478. ANSER ALBIFROK'S Gm., 



var. GAMBELi (Ilartl.) Cs. 

 Aniei'ica«ii IVliitc-fronted ^oose. 



479? ANSER C^RULESCEIfS L. 

 ISIaic <^oose. 



480. AN"SER HYPERBOREUS Pall. 



480a. ANSER HYPERBOREUS Pall., 

 var. albatus (Cass.) Cs. 



481. ANSER ROSSII Bd. 



482. PHILACTE CANAGICA (Sevast.) Bann. 



Pibiuted Ooose. 



[483.] BRANTA LEUCOPSIS (L.). 

 ISsAB'iatsele Ooose. 



484. BRANTA BERNICLA (L.). 



485. BRANTA CANADENSIS (L.). 

 Canada Choose ; ^'ild Choose. 



485a. BRANTA CANADENSIS (L.), 

 var. LEUCOPAREiA (Brandt) Cs. 

 ''IVIftite-collared €rOOj§e.. 



485b. BRANT A CANADENSIS (L.), 

 var. HUTCHiNSii (Rich.) Cs. 

 Miatcliiiis' Choose. 



