AVES. 
57 
by a single species and a unique specimen — are also described, 
and a fourth species, previously known as Anthocephala casta- 
neiventrisy is referred to the same genus. 
Salvin, Osbert, and Sclater, P. L. (See Sclater, P. L., and 
Salvin, Osbert.) 
Sclater, P. L. On some Additions to the List of the Birds of 
the Falkland Islands. Proc. Zool. Soc. 1864, p. 73. 
Two species, obtained by Capt. Packe, are added to the list 
previously drawn up by Dr. Sclater (P. Z. S. 1860, p. 382). 
These are Egretta leuce and Prion inrtnr. The author adds, 
from the ^ Ibis ^ (1861, p. 312), rectifications of the names of two 
others, viz. Nycticorax obkeurus for N. gar deni , and Larus glau- 
cotis for L. roseiventris. 
Sclater, P. L., and Salvin, Osbert. Notes on a Collection of 
Birds from the Isthmus of Panama. Proc. Zool. Soc. 1864, 
pp. 342-373, pi. XXX. 
Two hundred and seventy-two species are included in this 
list, to which is prefixed a concise notice of previous papers 
treating of the same subject. The collection was formed by 
Mr. M^Leannan, and observations are added by Mr. Salvin, 
who, in March and April 1863, spent some weeks at Panama and 
on the line of railway thence to Colon. Three hundred and 
eighty -nine species are at present known to inhabit this section 
of the isthmus, which seems, ornithologically speaking, more 
nearly allied to the lowlands of the northern portion of New 
Granada and Western Ecuador than to the country immediately 
to the north of it. Four new species are described, namely, 
Cassiculus microrhynchus , Myrrneciza immaculatay Camptostoma 
flaviventrey and Conurus oculariSy while of all those enumerated 
a very full synonymy is given, correcting a great many former 
errors. One species, Eucometis cassiniy is figured. This very 
important paper is so replete with information, that, though 
well deserving minute analysis, it is hardly possible within our 
limited space to do justice to its multitudinous details. 
Sclater, P. L. Descriptions of Seven New Species of Birds 
discovered by the late Dr. John Natterer in Brazil. Proc. 
Zool. Soc. 1864, pp. 605-611, pis. xxxvii.-xxxix. 
The results of Natterer’s discoveries inBrazil have hitherto been 
only partially known. By permission of the authorities of the 
Vienna Museum, Dr. Sclater has been able to acquire some of 
the duplicate specimens collected by that naturalist, and among 
them were the new species described in this paper. Ilcrr von 
Pelzeln also supplied the author with extracts from NattereFs 
MS. journal, which add to the value of the examples to which 
they refer. 
