OCEANODROMA TRISTRAMI. 



droma mcestissima from Samoa. As Latham's bird was from Otaheite, it is necessary for 

 us to receive so-called 0. fuliginosa from there, to prove beyond doubt that the birds 

 from the Japanese seas and Laysan are really rightly called 0. fuliginosa. In Latham's 

 description the slaty colour of the upper side is not mentioned, the brown rump 

 is not marked in the modern bird, and the under side is brown (not slaty), 

 but not paler than the upper side ! The example from Laysan measures : — Wing, 

 7.3 inches; tail, 4.1; forked for 1.25; culmen (over curve), 0.8; bill from gape, 

 1.1 ; metatarsus, 1.15 ; middle toe and claw, 1.15. Nasal tube rather prominent. 

 (Sex not determined on label.) " 



Adult male. Above sooty-black, with a distinct gloss of plumbeous-grey ; 

 scapulars black, with a whitish edging at the tip ; marginal wing-coverts black, 

 the remainder of the coverts drab-brown ; the inner secondaries similarly coloured but 

 paler, the innermost black ; primary-coverts and quills black ; lower back and rump 

 slightly greyer than the back ; upper tail-coverts black, ashy-brown for the basal 

 half ; tail-feathers black ; head, neck and throat lighter plumbeous-grey ; the remainder 

 of under-surface, including the under wing-coverts and axillaries, sooty-brown ; under 

 tail-coverts like the abdomen ; primary-coverts and inner aspect of quills dusky-grey. 

 Total length, 8.7 inches ; culmen, 0.7 ; wing, 6.8 ; tail, 3.7 ; median tail feathers, 2.2 ; 

 tarsus, 1.8 ; middle toe and claw, 1.1. 



The description is taken from the specimen from the Uraga Channel referred to 

 above, procured by Mr. Alan Owston on the 19th June, 1899. As 0. markhami is 

 figured on Plate 7, and the colours of that species and 0. tristrami are exactly 

 the same, it has not been considered necessary to give a coloured illustration of the 

 latter bird. 



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