40 BULLETIN 98, UNITED STATES NATIONAL MUSEUM. 
11. Hypothymis azurea opisthocyanea Oberholser.—Anamba and 
Tambelan Islands. 
12. Hupothymis azurea gigantoptera Oberholser.—Natuna Islands. 
13. Hypothymis azurea symmiata Stresemann.—lIslands of Bali, 
Lombok, Sumbawa, Flores, and Alor. 
14. Hypothymis azurea ponera Oberholser.—Batu Islands, western 
Sumatra. 
15. Hypothymis azurea isocara Oberholser.—Banjak Islands, 
western Sumatra. 
16. Hypothymis azurea leucophila Oberholser.—Pagi Islands, west- 
ern Sumatra. 
17. Hypothymis azurea amelis Oberholser.—Nias Island. 
18. Hypothymis azurea consobrina Richmond.—Simalur Island, 
western Sumatra. 
19. Hypothymis azurea richmondi Oberholser.—Engano Island, 
western Sumatra. 
Family PYCNONOTIDAE. 
~ AEGITHINA VIRIDISSIMA THAPSINA, new subspecies. 
Subspecific characters —Similar to Aegithina viridissima viridissima, 
from Sumatra, but much larger; oil green of upper surface, in the male, 
more yellowish; lower breast and abdomen paler, more yellowish. 
Description.—Type, adult male, No. 170951, U.S.N.M.; Pulo 
Siantan, Anamba Islands, August 20, 1899; Dr. W. L. Abbott. 
Entire upper surface, excepting the upper tail-coverts, oil green, the 
rump somewhat yellowish; upper tail-coverts glossy black; lores 
blackish; lengthened supra-orbital and suborbital spots rich lemon 
yellow; tail black, slightly tipped with oil green; wing-quills blackish 
clove brown above, the tertials and outer webs of primaries and sec- 
ondaries brownish black, the primaries, except the outer two, mar- 
gined basally with oil green, the secondaries edged almost throughout 
with the same color, the tertials margined on outer webs with oil 
green, where marked distally with a conspicuous yellowish white spot, 
and on inner vanes broadly bordered with citron yellow; all the upper 
wing-coverts glossy black, the median series broadly tipped with 
white, the greater row more narrowly with yellowish white; mferior 
surface of remiges grayish clove brown, broadly edged on basal por- 
tion of inner webs with dull white; under wing-coverts inwardly white, 
barely washed with canary yellow, exteriorly, including the edge of 
wing, canary yellow; axillars canary yellow, basally somewhat whit- 
ish; sides of head and neck, with chin, throat, and jugulum, oil green, 
like the upper surface; sides of body, breast, and abdomen, yellowish 
oil green, the middle portion, together with the crissum, canary yel- ’ 
low; flanks with a patch of elongated silky-white feathers; thighs 
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