rSEUDPRIA. rTYCnORIIAMI'HUS. 171 



Genus PSEUDURIA, Shar^>e. 

 Pseuduria columba {Pall.). 



Cepphus columba, Baud, Brewer Sf Ridyw. Water Birds N. Am. ii. 



p. 494 (1884). 

 Uria columba, Grant, Cat. Birds B. M. xxvi. p. 586 (1898). 

 Pseuduria columba, Sharpe, Hand-l. i. p. 131 (1899). 



The eggs of the Pigeon Guillemot do not differ in any way from 

 those of Cepphus gnjlle. 



1. Ilosario Channel, Vancouver Island, Voy. II. M.S. ' Plumper.' 



8th June {Br. Lynll). 



2. Piosario Channel, 10th June {Dr. Voy. II M.S. 'Plumper.' 



Li/ all). 

 5. "VValdron Island, Vancouver Island Voy. H.M.S. ' Plumper.' 



(iJr. Lyall). 

 4. "Waldron Island, 23rd June (Dr. Voy. H.M.S. ' Plumper.' 



Lijall). 

 2. Santa Cruz Island, Cahfomia, 5th Salvin-Godman Coll. 



June (Henshaiv Coll.). 

 1. Lake Begles, California (i^. 6-'r2<if/-). Purchased. 



Pseuduria snowi {Stejn.). 

 (Plate XII. fig. 6.) 



Uria columba, Blakiston ^- Fryer, Trans. As. Soc. Jap. x. p. 91 (1882) ; 



Seebohm, Ibis, 1884, p. 174. 

 Alca columba, Seebohm, Birds Japan. Emjy. p. 275, part. (1890). 

 Uria snowi. Grant, Cut. Birds B. M. xxvi. p. 588 (1898). 

 Pseuduria snowi, Sharpe, Hand-l. i. p. 131 (1899). 



The single egg of Snow's Guillemot in the Collection resembles 

 some of the eggs of Cepphtis grylle. The ground is of a pale 

 blue, and this is marked pretty evenly all over with blotches 

 and spots of chocolate-brown and pale purple. It measures 

 2-Ao by 1-53. 



1. Kurile Inlands, Japan (II. J. Snotc). Seebohm Coll. 



Sub-Family FRATERCULIN.E. 

 Genus PTYCHORHAMPHUS, Brandt. 



Ptychorhainphus alsuticus {Pall.). 

 (Plate XII. fig. 5.) 



Ptvchorhamphus aleuticus, Baird, Brewer^- Ridqw. Water Birds X. Am. 

 ' ii. p. 517 (1884); Grant, Cat. Birds B. 1m. xxvi. p. 599 (1898); 

 Sharpe, Hand-l. i. p. 132 (1899). 



The eggs of the Aleutian Auk are of a broad oval form, chalky 



