30 Journal of the F.M.S. Musewms. [Vov. VI, 
having a slight rufescent tinge. On the under-surface the 
breast-band, light olive-brown in colour, is much broader, 
extending over the chest to the abdomen and flanks, and the 
white throat patch is less clear, being slightly washed with the 
colour of the chest and sides of neck, while the lower abdomen 
is pale ivory yellow. 
The bill, as compared with that of R. pectoralis, has the 
upper mandible slightly less keeled and the lower is pale, not 
blackish. 
Length of wing, 80 mm; tail, 61; tarsus 16.7; bill from 
gape, 20.5. 
Dr. E. Hartert, who has examined the two individuals 
from Tampin (an adult and a slightly immature female) has 
kindly sent us the following remarks: “The new form 
resembles much more the Jarge-billed Ri. colonus, Hartert, from 
Sula Mangoli and Rh. nicobaricia from the Nicobars (than 
R. pectoralis). It differs, however, from Rh. colonus chiefly in 
the tail, which is brown and not chestnut rufous, and from 
Rh. mcobarica also in the less rufescent edges to the rectrices, 
somewhat more olivaceous back and rump and a little darker 
chest-band. It agrees with both the latter in the lower 
mandible being light in the adult birds.” In these two 
individuals the abdomen lacks the yellow tinge of the male. 
Type: Adult male, Genting Bidai, Selangor-Pahang 
Boundary, Malay Peninsula, 2,300 ft. 19th September 1914, 
F. M. S. Mus. No. 157/14. 
