WHITE-BELLIED STORM-PETREL. 149 



Nest. None, the eggs being laid in crevices of rocks or 

 under boulders, as described above by Mr. Eaton. 



Eggs. One. Dull-white, with a few lilac or reddish-brown 

 dots, generally collected in a zone round the large end. Axis, 

 i '3 inch; diam., o - 95. 



THE GREY STORM-PETRELS. GENUS PELAGODROMA. 



Pelagodroma, Reichenb. Av. Syst. Nat p. iv. (1852). 



Type, P. marina (Lath.). 



The genus Pelagodroma differs from Oceanites in having the 

 claws flattened and wide. The colour is of a light grey, 

 instead of black, and the breast is white. Only one species, 

 P. marina, is known. 



I. THE WHITE-BELLIED STORM-PETREL. PELAGODROMA 

 MARINA. 



Procellaria marina , Lath. Ind. Orn. ii. p. 826 (1790). 

 Pelagodroma marina^ Salvin, Cat. B. Brit. Mus. xxv. p. 362 

 (1896). 



(Plate CXId.) 



Adult. General colour above brown, with a wash of ashy- 

 grey on the mantle ; lower back, rump, and upper tail-coverts, 

 clear grey with white bases ; wing-coverts brown, the greater- 

 series ashy towards the ends; bastard-wing and primary- 

 coverts blackish-brown; quills blackish, ashy-brown on the 

 inner web ; tail-feathers black, ashy at the base ; crown of head 

 and nape dark slaty-grey, darkening towards the nape ; fore- 

 head, lores, and eyebrow white, as also the sides of the face ; 

 the feathers round the eye and below the latter slaty-black, 

 extending over the ear-coverts, cheeks and under surface of 

 body pure white ; sides of neck ashy-grey, extending on to the 

 sides of the upper breast ; under tail-coverts ashy-grey ; under 

 wing-coverts and axillaries white, the edge of the w^ng mottled 

 with brown ; quills below dusky white towards the base of the 

 inner webs ; bill and feet black ; webs of toes yellow ; iris 

 dark reddish-brown. Total length, 7*5 inches; culmen, '65 : 

 win g> 5'95 ; tail > 2 '85; tarsus, 1-5. 



