04 
ZOOLOGICAL LITEllATURE. 
Cygnus olor and C, musicus are figured. 0. J. Sundevall, Sv. Fogl. pi. Ivi. 
Anser brachyrhynchus is the large species of Goose frequenting Spitsberg'en, 
whicli has been taken to be A. segetum by Malmgren (CEf\ ers. K. Vet.-Akad. 
Fdrh. 1863, p. 107), and A. cmereus by Torell (op. cit. p. 115) and Evans and 
Sturge (Ibis, 1859, pp. 171, 172), A. Newton, P. Z. S. 1864, 498. 
Anser cmereus and A. segetum are figured. O. J. Sundevall, Sv. Fogl. pi. Ivi. 
Anser alhifrons^ A. minutus (sc. erythropus (Linn.)), A. leucopsis, and A, 
torquatus are figured. 0. J. Sundevall, Sv. Fo^l. pi. Ivii. 
ScLATER, P. L. Notes on the Species of Tadorna living in the 
Society's Gardens. P. Z. S. 1864, pp. 189-192.' 
A diagnostic list, with full notes, of the six known species of 
the genus — in which the author includes Casarca — is given, as 
well as figures of T. tadat'noides and T. variegata (plates xviii. 
and xix.) , the imperfections of former illustrations of these two 
species being commented upon. The rare Arias navosa^ Gould, 
considered to be a Tadorna by some naturalists, is not so re- 
garded by Dr. Sclater. 
. Sclater, P. L. Note on the Geographical Distribution of the 
Ducks of ih&(AQmi^Dendrocygna. P. Z. S. 1864, pp. 299-301 . 
A synonymic list, with full notes of the eight species known to 
the author, two of which — D. guttulala, Miill. MS." and D. va~ 
ganSy Eyton, are probably still undescribed. There are examples 
of the first in the British Museum and in Mr. Wallace's collec- 
tion. Two other apparent species, D. fulva and D. viTgata^ not . 
yet met with by Dr. Sclater, are also referred to. D. viduatay 
which is found both in Africa and South America, is suggested 
to have been introduced into the latter country by the early 
slavers. The Madagascar species is identical with J). major of 
India, and not, as heretofore believed, D. arcuata. 
Anas mclleri is described as a new species from Madagascar, belonging to 
that section of the group of true Anas in which the sexes are alike. It is 
the A. xanthorhynchus of Mr. Edward Newton (Ibis, 1863, p, 174), but not of 
Forster. P. L. Sclater, P. Z. S. 1864, p. 487. pi. xxxiv. 
Anas maxima oi Gosse, whether a hybrid or a variety of A. boschas, is stated 
to be a permanent resident in Jamaica. Some very inconclusive evidence 
afforded by certain eggs is adduced as bearing upon the point. W. T. March, 
Proc. Acad. Philad. 1864, p. 71* 
Anas tadorna, A. boschas, A. penelope, and A. clypeata are figured. C. J. 
Sundevall, Sv. Fogl. pi. Iviii. 
Anas acuta, A. querquedula, and A. crecca are figured. 0. J. Sundevall, Sv. 
Fogl. pi. lix. 
Cairina moschata. The English name of this species is said to have been 
corrupted from that of the Muysca ” Indians, whence is derived Musco or 
Muscovy Duck. W. T. March, Proc. Acad. Philad. 1864, p. 72. 
■ Hybrids between Anas boschas and A. crecca, A. acuta and A. penelope, 
A. sponsa and A. boschas (var. domestica), and A. galericulata and A. boschas 
