AVES. 73 
resembling C. apus, but having all the feathers barely tipped with whitish 
and the tail more forked. O. Antinori, Oat. Ucc. Affr. centr. p. 25. 
Trochilida5. 
Oreopyra hemileuca and O. cahlanna are two new species from Costa Rica. 
It is just possible that the latter may be the male of Anthbcephala castanei- 
vmtris] but if so, that specific name is totally inapplicable; and anyhow that 
bird should be referred to the genus Oreopyra. The supposed female of the 
Tanterpe insignis of Cabanis (Mus. Hein. iii. p. 43, note), described by Mr. 
Lawrence (Ann. Lyc. New York, viii. pp. 46, 46), is supposed to be identical 
with O. castanciventris. O. Salvin, P. Z. S. 1864, pp. 684, 686. 
Chalyhura mclanorrhoa and Selasphorus jlammula are also two new species 
from Costa Rica ; the former is allied to C. isaurts, but with a black vent ; the 
latter to 8. platyccrcus, but is smaller and has differently coloured rectrices. 
O. Salvin, P. z! S. 1864, pp. 685, 686. 
Urochroa leucura is described as a new species from Ecuador, closely re- 
sembling, and possibly identical with, U. hougiieri, but differing materially in 
the colour of the tail. G. N. Lawrence, Ann. Lyc. N. York, viii. pp. 43, 44. 
Urosticte ruficrissa is a new species from Ecuador, differing from U. henja-^ 
mini in being larger, in wanting the violet mark beneath the gorget and the 
white spot behind the eye, in having the crissum rufous instead of green, and 
in other particulars. G. N. Lawrence, Ann, Lyc. New York, viii. pp. 44, 45. 
JRamphomicron (lege Rkgmphotnicms) oUvacem is a new species from Bolivia, 
exceeding in size any species of that genus, the feet and claws being twice 
the size of what they arc in 72. heterojyogon, which is the only one it at all 
resembles, and being of a uniform olive colour. G. N. Lawrence, Ann. Lyc* 
New York, viii. p. 46. 
PASSERES. 
PlTTIDA5. 
Wallace, A. R. Remarks on the Habits, Distribution, and 
Affinities of the genus Pitta. Ibis, 1864, pp. 100-114. 
The author describes at some length the habits of the species observed by 
him; he considers that in the majority of them the sexes are alike in 
plumage. He adds the colours of the soft parts of all the species collected 
by himself, and then proceeds to enumerate the 33 species known to him, 
which, for convenience’ sake, he groups in 10 sections, and, summing them 
up, finds that Africa and Asia possess 6 species of three groups, Australia 2 
species of two groups, whereas the Malay Islands have 25 species of eight 
groups, proving that the genus is eminently Malayan, and one of the very few 
that characterize the archipelago as a whole, and not one extremity only of 
it ; though there appears to be a determination both of groups and species 
towards the Indo-Malayan province. Two species of the same group scarcely 
ever inha,bit the same island, illustrating the theory of the extermination of 
closely allied forms by the dominant race. Some further deductions from 
this case of geographical distribution are added, and the author concludes by 
considering the affinities of the genus, which, with the Old-World subfami- 
