178 
PROCEEDINGS OP THE ACADEMY OP 
and easily recognised by nearly the whole of the outer surface of the wing be- 
ing bright chestnut like the head. It is as follows : — 
1. Calliste Lavinia, Cassin. 
Very similar to C. gyrola, gyroloides and Desmarestii, and about the same 
size, but having the shoulders, wing coverts, and outer edges of the secondary 
and shorter primary quills, bright rufous chestnut, with a golden yellow lustre 
on the shoulder. Head above and cheeks bright chestnut, back of the neck 
golden yellow, which color extends somewhat and fades gradually on the back. 
Throat with a longitudinal stripe of pale blue, and another of the same color 
on the middle of the abdomen ; tibiae rufous. All other parts fine lustrous 
green, inner webs of quills and tail feathers black, bill and feet light colored. 
Total length about 4^ inches, wing 2^, tail If inches. 
Hab. Isthmus of Darien, New Grenada. Discovered by Mr. W. S. Wood, 
Jr., naturalist, attached to U. S. Surveying party, in command of Lieut. N. 
Michler, U. S. Topog. Engineers. 
This handsome bird is named in honor of Mrs. Lavinia Bowen, of this city, 
whose superior skill as an artist in natural history, and especially in ornithol- 
ogy, fully entitles her to such commemoration. Nearly all plates in Ornithology 
published in this city within the last twenty years, and many others in every 
department of Zoology, have been prepared under the supervision and direc- 
tion of this lady. 
2. Selenidera spectabilis, Cassin. 
Selenidera spectabilis, Cassin. Proc. Acad. Philada., 1857, p. 214. 
As stated above, both sexes of this bird are in the collection made by the 
surveying party, on the Isthmus of Darien, in command of Lieut. Michler, 
U. S. Top. Eng. The males do not vary from my description, as cited above, 
and both sexes have the bill parti-colored and variegated in its lighter portion 
as previously described. 
Female. General colors very similar to those of the male, but with the 
head above dark chestnut, as in the females of other species of the genus Se- 
lenidera. Under tail coverts scarlet, mixed with dark chestnut. 
According to Mr. William S. Wood, Jr., who accompanied the expedition as 
naturalist, this Toucan was obtained near the village of Susio, in the province 
of Choco, New Grenada. It was observed, generally, frequenting a tree called 
Cremantina, by the inhabitants, on the fruit of which it appeared to subsist at 
the period when noticed. 
Dr. Fisher announced, that during the past week, the mortgage debt 
of the Academy had been entirely cancelled, $10,000 having been pre- 
sented for that purpose by one of the members, and $1000 derived 
from the surplus funds of the Academy. 
Oct. bth. 
Major John Le Conte in the Chair. 
Twenty-nine members present. 
A paper was presented for publication in the Proceedings entitled 
" Description of a New Species of Argynnis, by James C. Fisher, M. D.^' 
and referred to a Committee. 
Oct. nth. 
Vice-President Lea in the Chair, 
Thirty-four members present. 
[Oct. 
