BIRDS OF TENASSERIM. 199 



The adult female — I rely on Davison's sexing — has the entire 

 forehead, crown and occiput dusky greyish, with however in the 

 middle of the crown a greenish olive patch ; back, scapulars, 

 lesser and median coverts a dull greenish olive yellow ; rump 

 and upper tail-coverts yellow ; quills and greater coverts hair 

 brown, margined on the outer webs with olive yellow ; chin and 

 centre of upper throat greenish white ; rest of throat, neck in 

 front, and sides of the head, grey ; the breast feathers grey- 

 ish at their bases, mingled olive and yellow towards the tips, 

 and with a distinct, though ill-defined, scarlet tinge at the base 

 of the throat in front ; the middle of the upper abdomen and 

 the lower tail -coverts pure yellow ; vent feathers creamy white 

 or yellowish white ; flanks and sides of abdomen mingled grey 

 and dull olive green ; wing-lining and axillaries as in the 

 male. 



A young male is very similar, but wants the dusky on the 

 head and grey on the sides of the neck ; has already the upper 

 tail-coverts a much brighter yellow, and some of the small 

 coverts also bright yellow ; has the whole chin and middle of 

 the throat right down to the breast greenish white, and a dark 

 moustachial stripe running from the lower edge of the lower 

 mandible under the cheeks and ear-coverts, and partly round 

 the ends of these ; traces of a shorter similar stripe from the 

 gape ; the top and sides of the head are olive green. 



The bill is as already described. 



240 quint. — Prionochilus maculatus, Tern. (5). 



Uslieetherrpone ; Pakchan ; Bankasoon ; Malewoon. 



The southern portions only of the province, not extending 

 many miles north of Mergui. 



[I may here mention that in their habits both the present 

 species and P. modestus, Hume, resemble precisely the different 

 species of Vicmim, as they do also in the localities they fre- 

 quent. There is really nothing further to be said about them. 

 The present species was only met with occasionally, and may be 

 accounted rare in Tenasserim.— -W. D.] 



The following are dimensions, &c, recorded in the flesh : — 



Males.— Length, 3*8 to 3-82; expanse, 6-82 to 6*9; tail from 

 vent, 1- to 1-2; wing, 2'12 to 2-2 ; tarsus, 0"5 ; bill from gape, 

 0-45 to 5-0 ; weight, 0-25 oz. 



Female.— Length, 3-55 ; expanse, 6 '6 ; tail from vent, 0*95; 

 wing, 2-0; tarsus, 0*5 ; bill from gape, 045. 



In the males the legs and feet were very dark plumbeous ; in 

 the female dirty smalt blue ; the upper mandible and lower 

 mandible to angle of gonys black ; rest plumbeous in males ; 

 smalt blue in the female; irides dull red. 



