PLATE IV. 



[Bulletin No. 29, TTnited States ITatlonal Mcsenm.] 



Fig. 1. Simorhgnchus pygmmis, $ ad., winter. U. S. Nat. Mus. No. 92960 ; Bering Isl- 

 and, December 29, 1882. 



Fig. 2. /SimorAj/nc/iMS ^^grmcPMS, 9 ad., summer. U. S. Nat. Mus. No. 92972; Bering Isl- 

 and, May 6, 1883. 



Fig. 3. Simorhynchuspusillus, g ad., summer. U. S. Nat. Mus. No. 92980 ; Berin.s< Isl- 

 and, December 30, 1882. 



Fig. 4. Simorhi)vchu8 cristaiellus, 9 ad., summer. U.S. Nat. Mus. No. 89096 ; Bering 

 Island, May 16, 1882. 



Fig. 5. Simorlnjnchus cristatellus, ^ ad., winter. U. S. Nat, Mus. No. 92958; Bering Isl- 

 and, March 1, 1883. 



Fig. 6. Cyclorrhynchua psittaculua, 9 ad., summer. U. S. Nat. Mus. No. 92946 ; Bering 

 Island, May 9, 1883. 



