r 
16 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
or nail of the upper mandible. This, viewed from above, is extremely 
small, narrow, and linear, the broader terminal half being bent very ab- 
ruptly downward and backward, so as to be visible only from in front 
or below. With the sole exception of Anas dominica, Linn., all the 
species usually referred to this genus agree strictly with the type, Anas 
leucocephala, Scop., notwithstanding other characters are more or less 
variable. Anas dominica, Linn., has the nail of normal form, or very 
much like that prevailing among the ducks generally, and on this account 
should be separated generically from Hrismatura. 
DESCRIPTION OF A NEW SPECIES OF BIRD OF THE FAMILY 
TURDIDA, FROM THE ISLAND OF DOMENECA, W. i. 
By GEO. N. LAWRENCE. 
Margarops dominicensis. 
Margarops herminieri, Lawr. nec Lafr., Proc. U. S. Nat. Mus., vol. I, p. 52. 
Male—tThe entire upper plumage is of a rich dark brown, the 
crown is darker and has the edges of the feathers of a lighter 
shade; tail and quill feathers of a darker brown than the back; 
axillars and under wing-coverts white; the lores are blackish brown; 
the feathers back of the eyes and the ear-coverts have narrow 
shaft streaks of pale rufous; the feathers of the neck and upper 
part of the breast are of a warm dark brown, those of the chin and 
middle of the throat with light rufous centres, those of the lower part 
of the neck and the upper part of the breast have also light rufous cen- 
tres, but in addition each feather has a light terminal spot; on the 
lower part of the breast and on the sides the feathers have white centres, 
bordered strikingly with brown ; the markings of the breast-feathers are 
squamiform in shape, those of the sides lanceolate; the abdomen is 
white, a fey feathers on the upper part are very narrowly margined 
with brown; under tail-coverts brown, terminating with white; outer 
feathers of thighs brown, the inner whitish ; “‘iris tea-color ;” there is a 
naked space around the eye; bill yellow, with the basal half of the upper 
mandible dusky; tarsi and toes pale yellow. 
Length (fresh), 9 inches; wing, 5; tail 34; tarsus, 13; bill from front, 
+3, from gap, 14. 
Type in United States National Museum. 
Mr. Ober sent five specimens of this form from Dominica, all males 
and closely resembling each other. It is probable, as in the allied spe- 
cies, that the females do not differ in plumage materially from the males. 
Mr. Ober’s collection from Dominica contained three species of Mar- 
garops which I never had seen before. These were referred to known 
species, two of them, I think, correctly; but the one which is the sub- 
ject of this article I now find was erroneously considered to be M. hermi- 
nieri, Lafr. I supposed these species would be the same as those recorded 
