323 
Letters, Announcements , fyc. 
the reception of B. rubineus, Jerd., and coequal with Brachypus, 
Sw. ; of 1831, founded upon the Tdispar, Horsf. Swainson’s 
genus, having been previously employed, must fall; and although 
Cabanis’s term Sphagias, coined six years later, may be more 
appropriate, the stem law of priority obliges us to discard it, as 
well as, for the same reason, that of Meropixus , Bp., published 
in 1854, and formed for the reception of our Ceylon bird, 
M. melanictera. 
The following species appear to me to come within the limits 
of Rubigula :— 
1. Brachypus rubineus, Jerd. Ill. Ind. Orn. 1846, pi. 37. 
2. Turdus dispar, Horsf. Linn. Tr. xiii. p. 150. 
3. Vanga fiaviventris, Tick. J. A. S. B. ii. 583, 1833. 
4. Muscicapa melanictera, Gm. 
Lanius melanocephalus, Gm. ( Turdus atriceps, Temm. PI. Col. 
147, type of Brachypodius, Blyth, 1845), is very closely allied, 
but differs in having the tail rounded instead of subquadrate; and 
near it must probably be placed Ixus chalcocephalus, Temm., 
PI. Col. 453. fig. 1, while Ixus squamatus, Temm., fig. 2, may 
perhaps form a fifth additional species of Rubigula . 
XXVII.— Letters, Announcements, fyc. 
We have received the following letters, addressed “To the 
Editor of ‘ The Ibis : ’ 33 — 
April 23, 1866. 
Sir, —The fact to which Mr. T. R. Archer Briggs draws at- ;l ' ~ 
tention in the last Number of ‘The Ibis 3 was already noticed by 
me (Ibis, 1864, p. 133). I hope this circumstance will impress 
on the minds of all readers of that Journal the importance of 
possessing a complete series of it. 
I am, Sir, your obedient Servant, 
-J. W. P. Orde. 
Willesden, Middlesex, June 8, 1866. 
Sir, —As Mr. A. G. More mentions (Ibis, 1865, p. 123) 
that he has no record of the Grey Wagtail ( Motacilla sulphurea) 
nesting in North Wales, and as Yarrell (B. B. i. p. 434), quo¬ 
ting Mr. Eyton, says that it is a winter visitor there, I beg leave 
to state that this year, from May 28 to June 4, I found it by 
no means rare, and evidently breeding, on the streams in the 
