14 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 42. 



COLLOCALIA FUCIPHAGA ELAPHRA Oberholser. 

 Collocaliafuciphaga elaphra Oberholser, Proc. Acad. Nat. Sci. Phila., July 26, 

 1906, p. 188 (Mah6 Island, Seychelles Islands). 



CMrs. suhsp. — Resembling Collocalia fuciphaga amechana, but 

 with upper surface more brownish, rather lighter, less glossy, and less 

 uniform, the pileum more contrasted with the back; posterior lower 

 parts paler, and with less evident dark shaft streaks; apparently also 

 somewhat smaller. 



Measurements.— Wing, 120.5-121 (average, 120.8) mm.; tail, 51; 

 exposed culmen, 4-4.5 (4.3); tarsus, 9-9.5 (9.3). 



Type-locality. — Mahe Island, Seychelles Islands. 



Geographical distribution. — Mahe Island, and probably other islands 

 of the Seychelles group. 



This weU-marked race is easily distinguished from the Javan Col- 

 localia fucipJiaga fucipliaga by its much greater size, lighter under 

 parts, and rather darker upper surface. By the above separation 

 of the Anamba Islands form it becomes confined, so far as known,' 

 to the Seychelles Islands. 



Measurements of specimens of Collocaliafuciphaga elaphra. 



COLLOCALIA FUCIPHAGA BREVIROSTRIS (McClelland). 

 Hirundo brevirostris McClelland, Proc. Zool. Soc. Lond., 1839, p. 155 (Assam). 



Chars, suhsp. — Similar to Collocalia fuciphaga fuciphaga, including 

 the lighter-colored rump; but much larger, and with tail somewhat 

 less deeply emarginate. 



Measurements.— Wing, 124-127 mm.; tail, 55-59; exposed culmen, 

 5.5; tarsus, 10. 



Type-locality. — Assam. 



Geographical distribution.— Ilimalsij a Mountains, from Dalhousie, 

 about 76° east longitude, east through Nepal and Sikhim to Assam 

 and Manipur. 



This bird the writer previously considered as a full species, = but 

 the discovery of Collocalia fuciphaga capnitis,^ which is intermediate 

 in size between C.f. brevirostris and 0. f. fuciphaga, indicates that the 

 former is, as Dr. Hartert considers it, * only a subspecies. 



'Type. 



2 Proc. Acad. Nat. Sci. Phila., July 26, 1906, p. 189. 



3 Thayer and Bangs; Bull. Mus. Comp. Zool., vol. 52, 1909. p. 139. 

 < Tierrelch, Lief. 1, 1897, p. 68. 



