MONOGRAPH OF THE PETRELS. 



Johann Natterer, of Vienna, who was disposed to identify it with Procellaria melanopus 

 of Solander, but with this conclusion Gould did not agree, and named the species after 

 Solander himself. 



Gould further considered that it was not a fully mature bird, but in my opinion 

 it is perfectly adult, as, indeed, it was so considered by Salvin. 



Adult male. General colour above black, slightly shaded with grey, less distinctly 

 on the head, which is darker than the back, where the feathers are dull slaty-grey with 

 blackish edges, becoming less distinct on the lower back, rump, and upper tail- 

 coverts; marginal and outer median wing-coverts dull slaty-grey, with dusky edges 

 towards the tips and along their outer webs ; bastard- wing and primary-coverts, black, 

 brown on the inner web, and white towards the base ; tail-feathers blackish, 

 slightly tinged with ashy-grey ; sides of face and cheeks dark brown, with a white 

 streak below the eye ; the base of the forehead, lores and cheeks white, mottled 

 with brown spots ; under-surface of body dusky brown, strongly shaded with slaty- 

 grey, slightly mottled with white spots on the throat, and with larger ones on the 

 breast, mostly concealed ; under wing-coverts blackish, the axillaries like the breast, 

 but of a more ashy-brown ; quills dusky below, with the base of the inner webs of 

 the primaries and primary-coverts white ; " bill, tarsi, toes, and membranes black " 

 (J. Gould). Total length about 18 inches ; culmen, 1.55 ; wing, 11.8 ; tail, 5.4 ; 

 tarsus, 1.2 ; middle toe and claw, 2.4. 



The description and figure are taken from the typical specimen in the British 

 Museum. 



220 



