366 PYCNONOTID. 
C’. t. henrici is intermediate in size but yvellower on the under 
parts. 
Colours of soft parts. Iris red; bill bluish grey, darker on tip 
and culmen ; legs fleshy-grey. 
Measurements. The largest of all the forms of White-throated 
Bulbuls, with a wing 114 to 119 mm. 
Distribution. Yunnan and N.E. Shan States. Siam birds seem. 
referable to C. t, henrici,a smaller form in the South from Annam, 
Cochin China ete. Oustalet’s larger birds from Yunnan should 
probably all be grandis. 
Nidification and Habits not recorded. 
Genus TRICHOLESTES Salvadori, 1874. 
The genus T'richolestes is remarkable for the numerous long 
hurs which spring from the back; these hairs lie close to the 
feathers and are not distinctly visible until they are lifted up. 
In Tricholestes the bill is very strong for the size of the bird. 
The culmen is straight for half its length and the tip of the upper 
mandible is strongly tipped and notched. The frontal and rictal 
bristles are long. The head is not crested. The wing is blunt, 
the tail slightly rounded and the feet are exceedingly small and 
weak. 
Fig. 72.— Head and back of T. ¢. criniger. 
(384) Tricholestes criniger criniger. 
THE HatrY-BACKED BULBUL. 
Brachypodius (?) eriniger Blyth, J. A.S.B., xiv, p. 577 (1845) 
(Malacea). 
Tricholestes crniger. Blanf. & Oates, i, p. 258. 
Vernacular names. None recorded. 
Description. Forehead and crown olive-brown; hind neck, 
back and rump dull olive-green; wing-coverts browner; quills 
