Recently published Ornithological Works. 105 
gone so far as to produce genera distinct from their conti¬ 
nental allies. As has been frequently asserted^ the effect of 
a residence in an oceanic island upon birds is to increase the 
size of their bills and feet, to shorten the wings and tail, and 
to darken the colours; this rule appliess strictly to the birds 
of Guadalupe Island. The change, as Mr. Ridgway points 
out, has not as yet proceeded far; but enough is seen to show 
that the law at work in most parts of the world is in action 
here also. 
5. Godwin-Austen on three new Species of Birds from 
Assam. 
[Description of three new Species of Birds of the Genera Pelm'neum, 
Actinura^ and Pomatorhinus, lately collected in the Neighbourhood of 
Saddya, Assam, by Mr. M. J. Ogle, of the Topographical Survey. By 
Major H. H. Godwin-Austen. J. A. S. B. xlvi. pt. ii. p. 41 (1877).] 
The three species here described are :— 
(1) Pellorneum pectoralis (p. 41), from Saddya.—In his 
notes on this species Major Godwin-Austen refers to the 
vexed question of Pellorneum tickelli, Blyth j but his views 
here expressed are altered in his subsequent paper. 
(2) Actinura oglei (p. 42): shot on Manbum Tila, on the 
Tenga-Pani river, near Saddya, at an elevation of 800 feet.— 
The species is compared with Turdinus guttatus, Tickell, a 
bird which Major Godwin-Austen considers to be incorrectly 
placed in the genus Turdinus, 
(3) Pomatorhinus stenorhynchus (p.43) ; Manbum Tila, on 
the Tenga-Pani river, near Saddya (800 feet).—This species 
has a slender bill approaching that of Xiphorhamphus, its 
coloration recalling P. ferruginosus. 
In the same collection are other new species, the names of 
which are given here, but the description of which is reserved 
for a future paper. 
6. Godwin-Austen on some species of Pellorneum and 
Pomatorhinus, &c. 
[Some Notes on Birds of the Genera Pellorneum and Pomatorhinus^ 
with a Description of a Variety of Chleuasicus rt^iceps, Blyth. By Major 
H. II. Godwin-Austen. Proc. A. S. B. June 1877.] 
