APPENDIX. 355 
7. Chetura Dominicana. “ Hirondelle.” 
Chetura poltura, Lawr. (nec Temm.), Proc. U.S. National Museum, 
page 62. 
MALE. Upper plumage smoky-black; lores black; rump dark 
ash ; upper tail-coverts brownish-black, just edged with whitish ; tail 
glossy black, the spines fine and projecting for nearly a quarter of 
an inch; wings glossy black; throat dark grayish-ash ; breast and 
abdomen of a warm smoky-brown; under tail-coverts brownish- 
black ; bill black ; feet yellowish-brown. 
Length (fresh), 48 inches ; wing, 44; tail, 1§. 
The female is similgr to the male in plumage. 
Habitat, Dominica. 
Types in National Museum, Washington. 
Remarks. In my Catalogue of the Birds of Dominica (Proc. U. 
S. Nat. Mus. 1878), I referred this species provisionally to C. polt- 
ura, Temm., being partly induced to do so because that species was 
noted from Tobago, comparatively a not very distant point. I then 
stated that it agreed quite well with the measurements given of that 
species by Mr. Sclater,in his Notes of the Cypselida (Proc. Zool. 
Soc., 1865, p. §93), but that the wing was shorter. The measure- 
ment of 3% inches, given by me, was taken from Mr. Ober’s note, and 
is clearly an error, as, in the four specimens sent, the wings of each 
measure 44 inches. 
Quite lately I received a collection made in Tobago by Mr. Ober, 
and found in it an example of C. dvachyura, Jard., which Mr. Sclater 
says, “Does not seem to be decidedly different from C. poliura, 
Temm., although the tail is rather shorter and the upper coverts are 
much produced, so as to reach nearly to the end of the rectrices.” 
In Mr. Ober’s example from Tobago, the upper coverts reach quite 
to the end of the tail-feathers. 
The species from Dominica is very distinct, and I think is unde- 
scribed. The Tobago bird is blacker above, and has the abdomen 
also black ; it is at once distinguished by its light ashy upper tail- 
coverts. 
The only other species requiring notice, if it really does, is the 
Hirundo acuta, Gm., from Martinique, which does not seem to be 
recognized by Jate writers, and is not noticed by Mr. Sclater in his 
Notes of the Cypselide. The locality given for it, Martinique, is 
what has induced me to allude to it. 
Gmelin’s name is based upon the “Sharp-tailed Swallow” of 
