LIST OF ILLUSTRATIONS. 



[All the figures are natural size unless otherwise stated.] 



1.— PLATES. 

 Plate I. 



Fig. 1. Lundacirrhaia, $ ad., summer. U. S. Nat. Mus. No. 89087: Bering Island 



May 11, 1882. ' 



Fig. 2. Lunda cirrhata, $ ad,, winter. U. S. Nat. Mus. No. 92920; Bering Island 



January 19, 1883. ' 



Plate II. 



Fig. 1. Lunda cirrhata, pullus. U. S. Nat. Mus. No. 92929; Bering Island Sep- 

 tember 6, 1883. ' 



Fig. 2. Lunda cirrhata, juv. U. S. Nat. Mus. No. 92930; Bering Island, Septem- 

 ber 24, 1882. 



Fig. 3. Lunda cirrhata, ju.y., winter. Bering Island, February 24, 1883. 



Fig. 4. Lmida cirrhata, jun., winter. U. S. Nat. Mus. No. 92922;' Bering Island 

 February 12, 1883. ' 



Plate III. 



Fig. 1. Fratercula corniculata, $ ad., summer. U. S. Nat. Mus. No. 89089- Bering 

 Island, May 21, 1882. ' 



Fig. 2. Fratercula corniculata, ad., winter. Bering Island, February 24, 1883. 



Fig. 3. Fratercula corniculata, <? jun., winter. U. S. Nat. Mus. No. 92932; Bering 

 Island, February 24, 1883. 

 Plate IV. 



Fig. 1. Simorhynchus pygmseus, $ ad., winter. U. S. Nat. Mus. No. 92960; Bering 



Island, December 29, 1882. 

 Fig. 2. Simorhynchus pygmieus, 9 ad., summer. U. S. Nat. Mus. No. 92972- Bering 



Island, May 6, 1883. ' 



Fig. 3. Simorhynchus pusiUus, $ ad., summer. U. S. Nat. Mus. No. 92980; Bering 



Island, December 30, 1882. 

 Fig. 4. Simorhynchus cristatellus, 5 ad., summer. U. S. Nat. Mus. No. 89096; 



Bering Island, May 16, 1882. 

 Fig. 5. Simorhynchus cristatellus, $ ad., winter. U. S. Nat. Mus. No. 92958; Bering 



Island, March 1, 1883. 

 Fig. 6. Cyclorrhynchus psiftaculus, $ ad., summer. U. S. Nat. Mus. No. 92946; 



Bering Island, May 9, 1883. 

 Plate V. 



Fig. 1. Cyclorrhynchus psittaculus, $ ad., summer. U. S. Nat. Mus. No. 89095; 



Bering Island, July 11, 1882. For explanation of letters see p. 41. 

 Fig. 2. Simorhynchus cristatellus, $ ad., summer! U. S. Nat. Mus. No. 92954; 

 Bering Island, June 4, 1883. Mouth opened to show the outHne of 

 the rictus. 

 Fig. 3. Simorhynchus pygmfBus, $ ad., winter. U. S. Nat. Mus. No. 92960; Bering 

 Island, December 29, 1882. Head seen from behind to show the position 

 \ii the lateral crests. 



361 



