CAPRIMULGID^ — THE GOATSUCKERS. 409 



Species and Varieties.^ 



A. Bristles of gapo with lateral filaments. Light tail-spaces confined to inner 

 web of feathers. 



Dark markings on croivn longitudinal. Ochraceous or white gular collar inform 

 of a narrov) hand across jugulum. 

 A. carolinensis. 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. Hab. Louisianian region of 

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

 Arkansas). Costa Rica. 



IS. Bristles of gape without lateral filaments ; 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, and decreasing 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, L40. Hab. Mexico (Mirador, La Parada). 



var. macr my sta X.- 

 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 bristles, 2.00. Hab. Cuba . . var. cubanensis.^ 

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

 dusky; lower parts without whitish cloudings. 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, 

 1.50 or less. Hab. Eastern Province of North America, south to 

 Gruatemala. 



Dark markings of crown transverse. Gular collar pure ivldte, covering 

 nearly luhole throat. 



b. Throat pure white, without any markings. 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 less than 1.00. Hab. Western Province 

 of United States, from the Plains to the Pacific. 



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

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



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

 ? Caprimulgus macromystax, Wagl. Isis, 1831, p. 533. 



^ Antrostomus macromystax, var. cuhanensis (Lawr.) Antrostomus cubanensis, Lawr. Ann. 

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



VOL. II. 52 



