1886.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 645 



Type.— U. S. Nat. Mus., No. 109474. 



Habitat. — Liu Kiu Islands. 



The type of the present species, which I take the pleasure to name 

 after its discoverer, was collected by Mr. Namiye, at "Nagogatake, 

 Liu Kiu," apparently the same as Nago Take of Hassenstein's map, a 

 mountain in the northern part of Okinawa Shima. 



Icoturus namiyei is evidently closely related to I. Icomadori, but the 

 difl'erences are so strongly marked that I feel no hesitation in describing 

 it as a distinct species, although having no si)ecimen of the latter at 

 hand for direct comparison. The specimen before me is undoubtedly a 

 male in full adult plumage, so the differences cannot be, due to age or 

 season, the more so as the proportions also seem quite different. I take 

 Seebohm's description of the type specimen of J. Jcomadori (Cat. B. 

 Brit. Mus., V, p. 298) to be correct, and shall now give in tabular form 

 the characters by which I. namiyei differs from that description : 



I. namiyei cf ad. 



I. komadori cT ad. 



rianks uniform ashy gray. 



Under -wing-coverts ashy gray, the outer webs 

 and the tips margined with rufous orange, simi- 

 lar to the color of the back. 



Axillaries uniform ashy gray. 



Bastard primary, 26.5""""'. 



Length of wing, 72""". 



Longest tail-feathers, 52""". 



Tarsus, 29'""'. 



Wing with the fourth, fifth, and sixth primaries 



"Flanks black; the feathers of the * * * upper 

 flanks margined with white. * * *." 



"Under wing-coverts black, margined with 

 white." 



"Axillaries white, with, dark centers." 



"Bastard primary, 0.8 inch " (=20.3"""). 



"Length of wing, male, 2.9" (=73.7°""). 



"Tail, male, 1.9" (=48.3'»"'). 



"Tarsus, 1.02" (2C'"'»). 



"Wing with the third, fourth, and fifth primaries 



nearly equal and longest; second primary about nearly equal and longest; second primary 



equal to the ninth. about equal to the sixth." 



It will be seen that I. namiyei has the wing much more rounded, with 

 a longer first primary, and that while the other dimensions are nearly 

 the same, the tarsus is proportionately longer. I have not introduced 

 the length of the culmen in the above comparison, as I do not know 

 how Mr. Seebohm measures it. The culmen is given by him as 0.68 

 inch (= 17.3™'") ; the " exposed culmen " of my bird is 14™™, but from the 

 extreme cranial base the culmen measures 19™™. both measurements 

 differing considerably from Mr. Seebohm's. I may also remark that 

 Mr. Seebohm describes the " rest of the under parts" (except chin, throat, 

 breast, and flanks) as " white," while in my bird the tibiae are ashy 

 strongly suffused with rufous, and the under tail-coverts pale rusty. 



Description.— S ad. ( U. S. JS^at Mus. No. 109474 ; Nagogafale, Liu 

 Kin, March 21, 1886. Coll. M. Namlyie). — Entire upper side, including 

 wing- coverts, tail-coverts, and rectrices beautiful orange rufous, deep- 

 est on top of head, lightest on the ear-coverts 5 in the middle of the 

 forehead the rufous goes clear to the bill, but the sides of the forehead 

 are jet black like the lores, the anterior part of the supercilium, cheeks, 

 chin, throat, fore neck, and upper breast, the posterior outline of the 

 black on the sides of the upper breast being as abrupt and well defined 

 as in the middle ; sides of body (the whole region covered by the folded 



