104 BULLETIN 159, UNITED STATES NATIONAL MUSEUM 



12. Graucalus sumatrensis difficilis Hartert. 



Graucalus sumatrensis difficilis Hartert, Nov. Zool., vol. 2, no. 3, p. 470, Aug. 

 17, 1895. ("Balabac") 



Geographic distribution. — Balabac and Palawan Islands, Philippine 

 Islands. 



13. Graucalus sumatrensis vordermani Hartert. 



Graucalus vordermani Hartert, Bull. Brit. Orn. Club, vol. 12, no. 84, p. 32, 

 Dec. 30, 1901. ("Kangean Island.") 



Geographic distribution. — Kangean Islands, Java Sea. 

 Family NECTARINIIDAE 



ABACHNOTHERA LONGIROSTRA ATITA, new subspecies 



Subspecijic characters. — Similar to Arachnothera longirostra roth- 

 schildi, from Bunguran Island, Natuna Islands, but bill decidedly 

 longer, wing and tail slightly so ; upper surface somewhat lighter, and 

 much more yellowish or bronzy (less greenish); yellow of posterior 

 lower parts deeper, brighter, and more golden (less greenish). 



Description. — Type, adult male, U.S.N. M. No. 174846, Sirhassen 

 Island, Natuna Islands, June 5, 1900; Dr. W. L. Abbott. Crown 

 fuscous, the feathers narrowly edged with dark citrine; occiput and 

 cervix dark citrine; interscapulum and rump, between orange-citrine 

 and dark citrine; upper tail coverts rather yellowish dark citrine; 

 tail rather dark fuscous, the rectrices margined basally with dark 

 citrine, and tipped on inner webs with rather dull white, this broadest 

 on exterior feathers and almost obsolete on middle pair; wings rather 

 light fuscous, the secondaries and tertials broadly, the primaries 

 narrowly, margined on outer webs with the greenish orange-citrine of 

 the interscapulum; the lesser wing coverts very broadlj'^, the median, 

 greater, and primary series narrowly, edged with dark citrine; lores 

 and subocular streak, dull grayish white; auriculars pale olive grayish; 

 broad rictal streak, dark grayish olive; supra-auricular region and 

 sides of neck, dark citrine, shading posteriorly toward orange-citrine; 

 chin, throat, and jugulum, dull olivaceous white, the jugulum washed 

 with pale yellow; breast, sides, and abdomen, lemon chrome; crissum 

 and thighs, baryta yellow; small tuft on each side of breast, orange; 

 lining of wing dull white, more or less washed with pale lemon yellow; 

 "upper mandible black; lower mandible leaden; feet leaden blue." 



Notwithstanding its intermediate geographical range between ylracA- 

 nothera longirostra rothschildi of Bunguran Island and Arachnothera 

 longirostra biittikqferi of Borneo, the present race is readily distin- 

 guishable from either. It differs from the latter in the paler, brighter, 

 less greenish washed, and on the breast and crissum less extensive, 

 yellow of posterior lower surface; lighter, somewhat more bronzy (or 

 yellowish) upperparts;- and somewhat shorter bill. It is one of the 

 few species represented in the Natuna Islands by two races. 



