18 
while no species of the genus has been found in Mindoro, which is 
situated directly between these two groups. Another curious fact 
is that chlorigaster appears to be absent from Luzon, where it is 
replaced by griseigularis, a very distinct species. 
DIcCHUM SIBUYANICUM Bourns and Worcester. 
The Sibuyan flower pecker is easily distinguished from the 
Romblon bird by the clear ashy gray of chin, throat, and upper 
breast, which in the latter species are washed with pale greenish 
yellow. It is stated that “fully adult birds always have the base 
of the lower mandible whitish, as do the young of most other species 
of the genus.”* In the face of this statement it is rather sur- 
prising to find that not one of our nine adult males has any whitish 
color on the lower mandible, the whole bill being black. Several 
young males, birds of the year, were collected, and as this plumage 
is undescribed the following notes are offered: 
Type of juvenile—No. 4426, male, bird of the year, Sibuyan, 
June 10, 1904. Upper parts washed with olive green; wings and 
tail black; primaries (except the first), secondaries, and primary 
coverts narrowly edged with blue; tertiaries and median and lesser 
coverts edged with green; lower parts light olive green ; chin, middle 
of breast, and abdomen light greenish yellow. Bill bright yellow 
except a light-brown tip; legs pale slate blue; nails blackish. 
DIc#UM INTERMEDIUM Bourns and Worcester. 
Two males were taken in Romblon. 
DicauM pyemauM Kittlitz. 
Taken in Romblon, where it was not previously known to occur. 
PIPRISOMA ARUGINOSUM (Bourns and Worcester). 
One specimen from Romblon. Three birds of the year, taken 
July 7, 1904, in Sibuyan, are somewhat similar to the adult, 
but the upper parts are darker and lack the greenish-olive wash of 
the adult. The stripes on lower parts are more indefinite, almost 
obsolete. The whole plumage is gray, rather than brown as in 
the adult. Colors of soft parts: Upper mandible, dark brown; 
lower mandible, dirty white; corners of mouth, light yellow; irides, 
light tan; legs and nails, dirty steel blue, almost black. No. 4568, 
male, is selected as the type of the juvenile plumage. 
1 Bourns and Worcester, Minn. Acad. Nat. Sci., Oc. Papers, I, No. 1, p. 18. 
