NO. 1881. FORMS OF COLLOCALIA FUCIPIiAGA—OBERHOLSER. 



13 



COLLOCALIA FUCIPHAGA AMECHANA, new subspecies. 



Chars, suhsp. — Similar to CoUocalia fuciphaga fuciphaga, but some- 

 what larger; lower parts more grayish; upper surface darker, more 

 blackish. 



Description.— Tj])e, adult female, No. 171072, U.S.N.M.; Pulo 

 Jimaja, Anamba Islands, September 19, 1899; Dr. W. L. Abbott. 

 Upper parts clove brown, witli a slight metallic greenish sheen, the 

 rump decidedly paler — dark hair browoi; %vings and tail blackish, 

 with a decided metallic greenish sheen, the inner edges of the feathers 

 lighter, more brownish; lores clove brown, the bases of the feathers 

 pure white ; cheeks, auriculars, and sides of neck deoj) smoky brown ; 

 lower surface grayish hair brown, darkest on chin and longest under 

 tail-coverts, lightest on anal region; lining of wing clove brown; 

 "iris dark brown; feet dark brown." 



Measurements. — Wing, 110.5^-113.5^ (average, 112) mm.; tail, 

 51 1-51.5 * (51.3); exposed culmen, 4.1-5 (4.6); tarsus, 9-9.3 (9.2). 



Type-locality. — Pulo Jimaja, Anamba Islands. 



Geographical distribution. — Pulo Jimaja and probably also other 

 of the Anamba Islands. 



The birds which form the basis of this new subspecies the writer 

 recorded as CoUocalia fuciphaga elaphra in his recent revision of the 

 genus CoUocalia,^ but further material and further investigations 

 show that they doubtless represent a local race, probably confined to 

 the Anamba Islands. Curiously enough this new bird is nearest in 

 color to CoUocalia fuciphaga elaphra ^ from the Seychelles Islands, 

 but differs from that form in less brownish, rather darker, more 

 glossy, more uniform upper parts; darker posterior lower surface; 

 and in probably smaller size, although the molting condition of the 

 primaries and rcctrices makes this somewhat uncertain. But, at 

 any rate, the form may be characterized by color alone. 



Measurements of specimens of CoUocalia fuciphaga amechana. 



> Molting: full measurements are probably somewhat greater than here given. 



« Proc. Acad. Nat. Scl. Phlla., July 20, 1906, p. 189. 



>Ibid.,p. 188. 



* Measured in the flesh by the collector. 



' Molting. 



•Type. 



