482 'NoYELTms.-^Diccsum virescens. 



varying from 4*1 to 4"25, with the neck hackles much longer, and 

 more (leveloped, of the same, bright green metallic gloss that 

 characterizes insidiator, but with even more of the purple bronzy 

 reflections in certain lights. 



To return to the young of Tytleri. This in its youngest stage 

 is a dark umber brown above, and the whole under surface striat- 

 ed dark brown and yellowish white \ there is only a faint greenish 

 gloss on the secondaries, tertiaries, and wing coverts, and the 

 former are narrowly margined, and the larger of the latter are 

 nan'owly tipped with brown. The wing lining and axillaries are 

 greyish brown margined with yellowish white ; in the adults these 

 are sooty black. At a later stage the upper surface, chin, and 

 throat are much as in the adult but duller ; the breast feathers as 

 in the adult, but narrowly margined with yellowish white ; the 

 abdomen, flanks, and lower tail coverts yellowish white, each feather 

 with a narrow central dusky stripe, broadest on the flanks and 

 upper abdomen, almost wanting towards the vent, and excessive- 

 ly narrow on the lower tail coverts. 



Dicseum virescens, <Sp. ^ov. 



Sexes alike. Ve7"y similar to the female of D. cruentatum, but with rum/p 

 and upper tail coverts olive green, and generally greener everywhere 

 than that bird. 



"^ "We observed this very typical Dicaum at the Andamans, but 

 failed to procure a specimen, subsequently however in June and 

 July, two specimens of each sex were shot in the neighbourhood 

 of Port Blair, and sent to us. It appears to me to be new. It 

 belongs to the same sub-group as concolor, Jerdon, and minimtim, 

 Tickell, characterized by the more sombre plumage and by the 

 absence of the bright red, yellow, or orange, which distinguishes 

 almost all the other species of this genus. 



There is no doubt one species celebicum, Miill, of which I know 

 nothing, and of which I can find no description ; but as this is 

 peculiar to the Celebes, it is not likely to be our bird. The pre- 

 sent species differs from jninimum, in its somewhat longer bill, 

 which is very differently colored, in the much greener hue of the 

 upper surface, and in the olive j^ellow tinge of the rump, upper 

 tail-coverts, and abdomen. It is a considerably smaller bird than 

 concolor, is of a purer, and brighter olive green, and differs from 

 that as from minimum in the color of the rump, upper tail 

 coverts, &c. 



