40 PROCEEDINGS OF THE ISTATIOlirAL MUSEUM vol. 75 



above and below than copha. but the male is considerably orayer, 

 less yelloAvish below. Both are rather small and will haA'e to depend 

 upon size for recognition until additional specimens have been 

 exajuined. 



A series of two males and four females from east Sumatra that 



Doctor Oberholser regards as typical of A. c. chrysogenys are more 



yellowish above and below than the west Sumatrau bird, copJia. and 



somewhat smaller. I have not examined Javan specimens which 



.Stuart Baker says is the t3q:>ical chrysogenys. 



ArachnotJiera chrysogenys astilpim Oberholser *^ and Arachiiothera 

 rhi'nsogeriys intensifava Stuart Baker*'' were both described from 

 Tenasserim and are probabl}'^ synonymous; the former name should 

 be used for this form, being the older. 



DICAEUM CRUENTATUM BATUENSE Richmond 



Dlcaeum sumatraniim hafuense Richmond, Proc. Biol. Soc. Washington, 



vol. 25, 1912, p. 104 (Pnlo Pinie. Batu Islands). 

 Dlcaeum cruentatiwi l>attie}ise Chasen and Kr.oss, Ibis, 1926, p. 300. 



Five males and one female, Sipora. 



The above series agrees with the type of 'batv£nse. The United 

 States National Museum possesses an immature male of apparently 

 the same form, from South Pagi Island. The chin and throat are 

 neutral gray, with a few scattered white feathers coming in on the 

 chin; the upper parts dark grayish olive, the crown, mantle, and 

 rump with a few black scarlet tipped feathers appearing; other- 

 wise it is like the adult. Already the white band down the center of 

 the lower parts has progressed further forward than in D. c. 

 suniatranum. 



An adult male, collected by Dr. W. L. Abbott on Nias Island 

 (180,07-1), apparently of D. c. sumatramirm, has a somewhat larger 

 bill than D. c. hatuense and the throat, chin, and foreneck are neutral 

 gray. In hatuense there is a rather broad band of ivory white 

 extending to and including th^ chin. 



The five males measure: Wing, 44.5-49 (45.8) ; culmen, 9-10 (9.8). The 

 type of batuense measures : Wing, 45.5 ; culmen, 10. The Nias specimen 

 of suniatranum: Wing. 48.5 ; culmen, 10.5. 



DICAEUM TRIGONOSTIGMUM PAGENSE Oberholser 



Dlcaeum triyonostlgmum pagcnse Oberholser, Journ. Washington Acad. 



Sci.. vol. 16, 1926, p. 520 (South Pagi Id.). 

 Dlcaeum triyouostigma Chasen and Klo.ss, Ibis, 1926, p. 300. 



Seven adult males, two immature males, and three females, Siberut; 

 seven adult males and eight females, Sipora. 



*6 Journ. Washington Acad. Sci., vol. 13, 1923, p. 227. 

 ^"Bull. Brit. Oin. Club, vol. 46, 1925, p. 14. 



