346 Lord Walden on the late Colonel Tickell’s 
before becoming emerald-green. Similar transitions take 
place in tbe colouring of the plumage of C. xanthorhynchus. 
The barred and rufous stage is succeeded by one in which 
the rufous colour is replaced by coppery green,, which then 
passes into a darker and purer green, then turns into violet 
or blue amethystine before finally assuming the amethystine 
hue of the fully adult plumage. An example of C. xan¬ 
thorhynchus, obtained at Rangoon, passing over from the 
rufous and coppery green stage to the violet and amethys¬ 
tine adult dress, is well figured by Colonel Tickell. He, 
however, considers that C. maculatus is in what he terms 
the first adult ” dress, and that C. xanthorhynchus repre¬ 
sents the “ second adult, or old bird ” of the same species— 
a conclusion which is contrary to the known facts. C. xan¬ 
thorhynchus, a smaller bird than C. maculatus, is a Malayan 
species which ranges as far north as Hill Tipperah, and occurs 
in the Andamans. C. maculatus is an Indian species, and 
found not uncommonly in Pegu and Siam (C. schomburyki ). 
In fully adult plumage it has the chin and throat, but not 
the breast, unbarred emerald-green, like the upper plumage. 
To the Tenuirostres, as understood by Colonel Tickell, are 
devoted volume iv., with thirty-two plates. By him this 
tribe is made to include the Sittidce, Nectariniidee, and genera 
such as Zoster ops, I or a, Phyllornis, Yuhina, Myzornis, Her- 
pornis and Oriolus, Irena and Upupa. 
One of the most finished drawings in the work is that of 
Certhia discolor, taken from a Darjeeling example. That of 
Sitta formosa is not so happy, while the characters whereby 
Sitta cinnamomeoventris is distinguished from S. castanei - 
ventris are successfully portrayed on the plate representing 
the two species ; and, together with that of S. himalayensis, 
the tails are separately sketched in Indian-ink. The lovely 
Dendrophila frontalis (Horsf.) is worthily depicted from two 
Tenasserim examples. Mr. Sharpe has (Str. Feath. 1875, 
p. 436) recently stated that the Javan bird differed specifi¬ 
cally from the continental S. corallina, Hodgs. The cha¬ 
racters relied on are “ the under surface being more richly 
coloured, and the throat being lilac-brown, like the breast,” 
