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472 



LAMELLIROSTRAL SWIMMERS — AXSERES. 



white, inten-upted only on the nape, aiul with obliciue streaks running upward for an inch outside 

 the ring. Upper parts, breast, and abdomen unil'orni dark brownish phuubeous, the rump, prima- 

 ries, and secondaries approaching bhick. Anal region, crissuni, sides of tlie rum]), f id upper tail- 

 coverts immaculate snow-white. Tail uniform black. Feathers of tlie sides and Hanks with very 



Bemicla nif/ricans. 



broad wliite tips, these almost concealing tlie dusky of the basal portion. Bill and feet deej) black ; 

 tarsi dark nMldish (lilack in life >.). Wing, 13. -iO inclies ; culnien, IMi) ; tarsus, 2.50 ; middle toe, 

 2.00. YotuKj (No. (U!)(!:5, 9, riiidakleet, Alaslca, Sejit. 28, 18(i7 ; W. H. Dall) : Similar to the 



adult, but collar obsolete, greater wing-coverts and 

 secondaries broadly tijiped with pure wldte, and 

 feathers of the sides and llanks uniform brownish 

 gray, without white tips. 



A very curious specimen from Northern Europe 

 (No. 57107, "hoher Norden;" Schliiter Coll.) is 

 exactly intermediate between this species and li. 

 hrenta, and is probably a hybrid. It has the uni- 

 form colors of the body characteristic of the B. 

 nigrican.i ; but the shade is rather lighter, present- 

 ing a more appreciable demarcation of the black of 

 the jugulum, and has a more bluish cast — the 

 wing-coverts in strong and abrupt contrast with 

 the black secondaries. The white of the neck is in 

 two oppo.site isolated crescents, as in bemicla. It 

 measures as follows : Wing, 12.85 inches ; culnien, 

 1.25 ; tarsus, 2.30 ; middle toe, 1.75. 



This form is very closely allied to the 



coninioii l^rant Goose, and takes its place 



on the Pacific coast, wliero the latter does 



not seem to occur. The present species is quite rare on tlu^ eastern coast. ]Mr. Hen- 



