CAPRIMULGID.'E — THE GOATSUCKERS. 409 



Species and Varieties, 



A. Bristles of gape with lateral lilaments. Liglit tail-spaces confined to inner 

 web of feathers. 



Darh markinys on crown lonrjiludinal . Ochraceous or white gular collar in Jorm 

 of a narrow band across jugulum. 

 A. caroliuensis. Throat ochraceous, with sparse, narrow, transverse 

 bars of black ; jugular collar more whitish, with broader but more dis- 

 tant black bars. Crissum barred, and inner webs of primaries with 

 black prevailing. Wing, 8.90 ; tail, 6.30. Hah. Louisianian region of 

 the Eastern Province of United States (Florida and the Carolinas to 

 Arkansas). Costa Rica. 



B. Bristles of gape without lateral fdanients ; light tail-spaces covering both 

 webs. 



a. Throat black, with sparse, narrow, transverse bars of pale brown. Cris- 

 sum barred, and inner webs of primaries with black greatly predominating. 



A. macromystax. Crown pale brown and whitish very coarsely 

 mottled with dusky ; lower parts clouded with whitish, in conspicuous 

 contrast with the ground color. Light tail patch restricted to less than 

 terminal third, anil decrea.sing in breadth toward the middle feathers. 

 Bristles of gape enormously long and stout ; bill compressed, nostrils 

 large. 



White patch on end of tail confined to three outer feathers, and 



decreasing very rapidly in extent to the inner. Wing, 6.60 ; tail, 



5.30; rictal bristles, 1.40. Hah. Mexico (Mirador, La Parada). 



var. 7)1 acr omy siax.' 

 White patch on end of tail, on four outer feathers, and just 



appreciably decreasing in extent toward the inner. Wing, 7.00 ; 



tail, 5.50 ; rictal bristle.«, 2.00. Hah. Cuba . . var. cubanensis.' 

 A. vociferus. Crown ash, finely mottled or minutely sprinkled with 

 dusky; lower parts without whitish clordings. White tail-patch cover- 

 ing more than terminal half, and decreasing in breadth toward the outer 

 feather. Bristles of gape moderate, slender ; bill weaker, less com- 

 pressed, and nostrils smaller. Wing, 6.40; tail, 5.10; rictal bristles, 

 L50 or less. Hah. Eastern Province of North Amei'ica, south to 

 Guatemala. 



Dark markings of crown transverse. Chdar collar pure ivhite, covering 

 vearhj ivhole throat. 



b. Throat pure white, without any marking.s. Crissum immaculate; inner 

 webs of primaries with ochraceous very largely predominating. 



A. nuttalli. White space of tail occupying about the terminal fourth, 

 or less, on three feathers, and gradually decreasing inwardly. Wing, 

 5.75 ; tail, 3.90 ; rictal bristles lesg than 1.00. Hah. Western Province 

 of United State.s, from the Plains to the Pacific. 



1 The females differ simply in having the light tail-space much reduced in size, and dull ochra- 

 ceous, instead of whitish ; in that of caroli7iensis it is wanting altogether. 



" Antrostomus macromystax (Wagl. ?) Sclater, P. Z. S. 1866, 137 (La Parada, Mex.). 

 t Cajmmulgus muicroinystax, Wagl. Isis, 1831, p. 533. 



' Antrostomus macrmnystax, var. cubanensis (Lawk.) Aiitrostvmus cuhanensi.i, Lawk. Ann. 

 N. Y. Lye. VII, May, 1860, p. 260. 



vol.. II. 52 



