PROCKLLAEIIDJS, 147 



Family PRO CELL ARIID^. 



Sub-Family PROCELLARIINiE. 



Genus PROCELLARIA, Linn. 



Procellaria pelagica, Linn. 



Procellavia pelagica, Thien. Fortpflanz. yes. Vog. tab. xcii. fig. 8 

 (1845-54) ; Baird, Brewer S,- Ridgw. Water Birds N. Am. ii. p. 403 

 (1884) ; Seehohm, Brit. Birds, iii. p. 438, pi 56 (1885) ; id. Eqgs of 

 Brit. Birds, p. 74, pi. 20. tig. 4 (1896) ; Salvin, Cat. Birds B. M. 

 XXV. p. 343 (1896) ; Sharpe, Hand-l. i. p. VIQ (1899). 



Thalassidroma pelagica, Baedeker, Bier Bur. Vog. tab. 55. fig. 3 (1855-63) ; 

 Hetoitson, 'Eggs of Brit. Birds, ii. p. 517, pi. cxlv. fig. i (185G) ; 

 Dresser, Bii-ds JEur. viii. p. 491 (1874). 



The eggs of the Stormy Petrel are usually truly elliptical, but in 

 some specimens one end is slightly pointed. They are without 

 gloss, white, and marked with a zone or cap of minute red dots at 

 one end. Occasionally the dots extend over the whole shell, and 

 sometimes they are entirely absent. They measure from 1 to 1*2 

 in length, and from '73 to -9 in breadth. 



Genus HALOCYPTENA, Coues. 



Halocyptena microsoma, Coues. 

 (Plate XI. fig. 1.) 



Halocyptena microsoma, Baird, Brewer ^- Ridgtv. Water Birds iV. Am. 

 ii. p. 402 (1884); Saloi7i, Cat. Birds B. 31. xxv. p. 346 (1896): 

 Sharpe, Haiid-l. i. p. 121 (1899). 



The eggs of the Wedge-tailed Petrel in the Collection are of an 

 elliptical or broad oval shape, white, with a very few minute rufous 



l2 



