1866.] MR. SCLATER ON THE AMERICAN CAPRIMULGIDjE. 137 



Caprimulgus cortopao, Natt. Mus. Vindob. sp. no. 741. 

 Hab. Cayenne {Buff.); Para (Natt.). 



I have a single female example of this species, from Natterer's 

 collection. Mr. Salvin's collection also contains a specimen. 



3. Antrostomus sericeo-caudatus. 



Antrostomus sericeo-caudatus, Cassin, Proc. Acad. Phil. iv. p. 238, 

 et Journ. ii. p. 121, pi. 12. 



Hab. South America. 



I have a skin, believed to be from Venezuela, which I think may 

 probably be referable to the female of this species. There is a simi- 

 lar specimen in the British Museum, said to be from Bahia. 



4. Antrostomus vociferus. 



Caprimulgus vociferus, Wils. 



Antrostomus vociferus, Cassin, Journ. Ac. Phil. ii. p. 122; Baird, 

 B.N. Am. p. 148. 



Hab. Eastern United States to the plains (Baird) ; Cuba (Lem- 

 leye) ; South Mexico, Jalapa (Be Oca) ; Guatemala (Salvin). 



This species seems to be abundant in Guatemala. Mr. Salvin ob- 

 tained examples at Coban and San Geronimo, besides other localities 

 in Vera Paz, 



5. Antrostomus macromystax. 



Caprimulgus macromystax, "Wagl. Isis, 1831, p. 533 (?). 

 Antrostomus macromystax, Sclater, P. Z. S. 1858, p. 296. 



Similis A. vocifero, sed paulo major, alls longioribus, rostro lon- 

 giore et magis compresso : narium aperturis exstantibus ; tarsis 

 longioribus et magis denudatis : long, tota 9"7, alee 6'6, caudce 

 5, rostri a rictu lin. dir. 1"4. 

 Hab. In Mexico merid. La Parada (Boucard). 

 Whether this bird is really Wagler's C. macromystax is certainly 

 problematical ; but there is uo doubt at all of its being epiite distinct 

 from A. vociferus, although at first sight it is surprisingly like that 

 species in coloration. I have not yet met with a second example of 

 this species. 



6. Antrostomus nuttalli. 



Caprimulgus nuttalli, Aud. 



Antrostomus nuttalli, Cassin, Journ. Acad. Phil.ii. p. 123; Baird, 

 B. N. A. p. 149 ; Coues, Ibis, 1865, pp. 158 et 538 ; Dresser, ibid, 

 p. 4/0. 



Hab. High central plains of North America, extending to the Pa- 

 cific Coast ; Kansas and Arizona (Coues) ; Texas (Dresser). 



Easily distinguishable from A. vociferus by its smaller size. It 

 appears also, judging from the specimens in my collection, to have 

 nearly the whole tarsus bare of feathers. 



7. Antrostomus ocellatus. 

 Caprimulgus brasilianus, Max. Beitr. iii. p. 337. 



