600 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 39. 



o Measured in the flesh by the collector. 

 HYPOTHYMIS AZUREA GIGANTOPTERA, b new subspecies. 



Chars, subsp. — Similar to Eypoihymis azurea prophata, but decid- 

 edly larger. 



Description. — Type, adult male, No. 174828, U.S.N.M., Bun- 

 guran Island, Natuna Islands, July 12, 1900; Dr. W. L. Abbott. 

 Throat, breast, and upper parts hyacinth blue, slightly paler below, 

 decidedly so on pileum; forehead at base of culmen, a tiny chin spot, 

 a crescentic occipital patch, and a somewhat crescentic bar on 

 jugulum velvety black; wings and tail slate black, the wing-quills 

 and rectrices broadly edged with marine blue, the wing-coverts with 

 the color of the back; posterior under parts grayish or bluish white, 

 the fore part of abdomen, the sides, and flanks tinged with blue, 

 most so on the first; outer inferior wing-coverts hyacinth blue, the 

 others slate gray mixed with white; axillars grayish white, slightly 

 washed with blue, chiefly exteriorly; thighs slate gray overlaid with 

 blue. 



Measurements.— 1l wo males: Wing, 73.5-74.5 (average, 74); tail; 

 73-74 (average, 73.5); exposed culmen, 11.5-12 (average, 11.8), 

 tarsus, 16.5-17 (average, 16.8) mm. 



Type-locality. — Bunguran Island, Natuna Archipelago. 



Geographical distribution. — Natuna Islands. 



^A. similar specific name — Amytornis giganturus {MxWigaxi) — has been rejected by 

 Dr. R. B. Sharpe (Hand List Gen. and Species Birds, vol. 4, 1903, p. 246), because 

 supposed to be a hybrid; but it may readily be seen that gigantoptera is correctly 

 formed from Ttjac, ycyavTog, and Tzxtpbv. 



