67. (ESTRELATA WORTHENI, Rothschild. 



(WORTHEN'S FULMAR.) 



CEstrelata wortheni, Rothschild, Bull. B. 0. C., XII., p. 62 (1902). 

 JEstrelata woriheni, Rothschild and Hartert, Nov. Zool., IX., p. 414 (1902). 



CE. -magenta similis, sed minor, nigricantior : fronte et loris schistaceo-nigris 

 distinguenda. 



The type of this species was obtained by Mr. R. W. Beck on January 2nd, 1901, in 

 the Pacific Ocean, not far from the Galapagos Islands. It was afterwards 

 described by the Hon. Walter Rothschild, who sent the specimen to the 

 Turin Museum, where Count Salvadori compared it with the type of 

 CE. magentas, to which it is doubtless closely allied. In their paper on the 

 " Birds of the Galapagos Islands," the Hon. Walter Rothschild and Dr. Hartert point 

 to the following differences : — The general colour of CE. wortheni above is darker, 

 somewhat blacker than in (E. magentce. The dimensions are less, and the bill smaller 

 and weaker, and the primaries narrower than in the type of CE. magentas (Nov. Zool., 

 IX., p. 414). The authors also give comparative measurements, but these do not 

 entirely agree with my own computation, and I think that there must be a mistake 

 as regards the length of the wing. 



Adult female (type). — General colour above black, with obsolete dusky margins 

 to the feathers, all of which have white bases ; wing-coverts black, the greater coverts 

 ashy-brown externally ; quills black, ashy-brown on the inner webs ; tail black ; 

 crown of head black, the forehead and lores with an obsolete shading of grey ; lores, 

 sides of face and cheeks, black, with a narrow line of white skirting the upper and 

 lower eyelids ; base of chin black ; throat white, slightly spotted with dusky tips to 

 some of the feathers ; across the lower throat and fore-neck a broad band of black, 

 shading into ashy-grey ; remainder of under-surface of body white ; a patch of black 

 on the sides of the breast, and another on the lower flanks ; under tail-coverts white, 

 the long lateral ones ashy-brown either towards the ends, or along the greater part of 

 the outer web, which, with the inner web, is occasionally marked inside and out with 

 bars of the same colour ; under wing-coverts and axillaries black ; the primary-coverts 



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