WHITE-BELLIED STORM-PETREL. I49 



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., 0*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 wing 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, 0-65 : 

 wing, 5-95 ; tail, 2-85; tarsus, 1-5. 



