(ESTRELATA HYPOLEUCA. 



a huge colony of (Estrelata, encircling the central lagoon. Nothing further is recorded 

 of its habits. 



Adult male. General colour above dark ashy-grey, with indistinct margins of 

 hoary-grey, the long scapulars blackish towards their ends ; feathers of the mantle 

 and crown of head slightly browner than the back, and having white bases, 

 producing a mottled appearance ; wing-coverts black, slightly washed with ashy-grey, 

 more distinct on the greater series, all the greater coverts having white fringes ; 

 bastard-wing, primary-coverts, and quills black, the primaries ashy-brown on the 

 inner web, the secondaries dark ashy-grey, white towards the base of the inner web ; 

 tail-feathers ashy-brown, blackish towards the ends ; crown of head blackish- 

 brown, the forepart mottled with black centres and white fringes to the feathers ; 

 lores and base of forehead white, with a few black spots, which also occur on the 

 forepart of the cheeks ; sides of face and ear-coverts black, with a small streak of 

 white above and below the eye, which is otherwise entirely surrounded with black ; 

 cheeks and entire under-surface of body pure white, including the tail-coverts ; 

 axUlaries pure white ; under wing-coverts for the most part black, but with the 

 inner, median, and the whole of the greater series of coverts, white, forming a patch 

 across the middle of the lower coverts ; some of the outer greater coverts ashy 

 towards their ends ; under primary-coverts and quills below blackish, ashy-brown on 

 the inner webs, with narrow hoary-grey edges, the secondaries with white bases to 

 the inner webs ; " bill black ; tarsi bluish pink ; iris dark brown, the pupil blue " 

 (P. A. Hoist). Total length about 10.5 inches ; culmen, 0.9 ; wing, 8.75 ; tail, 4.15 ; 

 tarsus, 1.1 ; middle toe and claw, 1.35. 



The figure in the Plate is drawn from the type-specimen in the British Museum, 

 and the bird described is in the collection of the Hon. Walter Rothschild, and came 

 from the Liu Kiu Islands. 



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