PSBUD0EIA. PTYCHOEHAMPHUS. 171 



Genus PSEUDUEIA, Sharpe. 



Pseuduria columba (Pall.). 



Cepplius columba, Baird, Brewer 8f Ridgw. Water Birds N. Am. ii. 



p. 494 (1884). 

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

 Pseuduria columba, Sharps, Rand-l. i. p.'lSl (1899). 



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

 those of Gepjphus grylle. 



1. Eosario Cbannel, Vancouver Island, Voy. H.M.S. ' Plumper.' 



8th June (Z>r. lyaU). 



2. Eosario Channel, 10th June (J)r. Voy. H-M.S. 'Plumper.' 



Lyali). 

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



(Dr. Lyall). 

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



ZyalV). 

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



June (Henshaw Coll.). 

 1. Lake Begles, California {F. Gruber). Purchased. 



Pseuduria snowi (Stejn.), 

 (Plate XII. fig. 6.) 



Uria columba, Blakiston 8r Fryer, Trans. As. Soe. Jap. x. p. 91 (1882) ; 



Seebohm, Ibis, 1884, p. 174. 

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

 Uria snoviri. Grant, Cat. Birds B. M, xxvi. p. 588 (1898). 

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



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

 some of the eggs of Cepphiis 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 

 2-45 by 1-53. 



1. Kurile Islands, Japan {H. J. Snow). Seebohm Coll. 



Sub-Family 'FRATERCULINiE. 

 Genus PTYCHORHAMPHUS, Brandt. 



Ptychorhamplius aleuticus (PaU.). 

 (Plate XII. fig. 5.) 



Ptvchorhamphus aleuticus, Baird, Brewer Sf Ridgiv. Water Birds N. Am. 

 ii. p. 617 (1884) ; Grant, Cat. Birds B. M. xxvi. p. 599 (1898) ; 

 Sharpe, Randrl. i. p. 132 (1899). 



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



