48 Aves. 
AYES. 
Alcidao. 
Dybowski, B. Observations sur les oiseaux de la famille des Mormo- 
nidds. Bull. Soc. Z. Fr. vii. pp. 290-300. 
The author’s travels in Kamtchatka, and the Komandarski Islands have 
given him unusually good opportunities for studying Puffins, of which he 
recognizes eight species, belonging to six genera. His notes on the 
colour of the face, always an important feature in these birds, are most 
valuable, as are also his illustrations. 
A lea impennis. Remains on Island of Oronsay, Argyllshire : bones 
figured ; S. Grieve, J. L. S. xvi. pp. 479-487. 
IMPENNES. 
Filhol, H. Observations relatives aux caracteres osteologiques de 
certaines especes d’Eudyptes et de Spheniscus . Bull. Soc. Philom. (7) 
vi. pp. 226-235. 
. Sur la constitution du diaphragme des Eudyptes. Id. tom. cit. 
pp. 235-238. 
. Observations relatives au tronc cceliaquo et al’artere m^sent^rique 
sup&ieure de V Eudyptes antipodes. Id. tom. cit. pp. 238-242. 
. Observations relatives a la circulation art^rielle dans l’aile de 
quelques especes de Manchots. Id. tom. cit. p. 242. 
. Observations relatives a la circulation art&ielle dans le membre 
inf^rieur de quelques especes de Manchots ( Aptenodytes pennanti , Eu- 
dyptes antipodes et E. chrysocoma). Id. tom. cit. pp. 243-248. 
CRYPTURI. 
Crypturus balstoni, sp. n., Eastern Peru, E. Bartlett, P. Z. S. 1882, 
p. 374. 
Sub-Class RATPTiE. 
Huxley, T. II. On the Respiratory Organs of Apteryx. P. Z. S. 1881, 
pp. 560-569. 
The author concludes that there is a fundamental resemblance between 
the respiratory organs of Birds and those of Reptiles, whilst the respective 
organs of Mammals are quite different. 
Salvadori, T. Monografia del gen. Casuarius, Briss. Mem. Acc. Tor. 
(2) xxxiv. pp. 173-217, pis. i. &. ii. 
Ten species recognized, with woodcuts of characters of wattles, and 
coloured figures of the heads. 
Struthio camelus. A new Entozoon ( Strongylus douglassi) described 
from its proventriculus ; T. S. Cobbold, J. L. S. xvi. pp. 184-188, pi. iv. 
