CAPRIMULGTJS. 387 



C. macromystax is apparently a resident species in the Mexican tablelands, the 

 western districts of that country,, and in Guatemala. It also passes the northern 

 frontier into Arizona. 



Concerning its name there was long a certain amount of doubt, Wagler's description 

 not being sufficiently explicit to distinguish between C. macromystax and C. vociferm. 

 This question has been finally settled by Mr. Hartert \ who has examined the type 

 lent to him by its custodian at Munich and compared it with the series in the British 

 Museum. The result shows that the bird named C. macromystax by Sclater and others 

 was rightly so called, and that Mr. Brewster's Antrostomus vociferus arizonoe must be 

 referred to the same species, the C. macromystax of American authors being a very 

 different species. 



On 20th April, 1860, Mr. E. Owen found, in the Santa Barbara Mountains in Vera 

 Paz, two eggs of this species, and secured the female parent ^. These eggs, though of 

 the shape and texture usual in the Caprimulgidse, are pure spotless white ; they were 

 deposited on the ground at the foot of a large pine-tree, but there was no nest. That 

 these eggs belonged to the bird secured cannot be reasonably doubted ; but their colour 

 is quite unusual and perhaps abnormal, though it must be remembered Phalcenoptilus 

 nuttalli lays white eggs, and those of Sfenopsis rujicermx are of the same colour. 



In quoting a letter from Salvin, dated 10th March, 1872, Brewer, in his history of 

 the last species, gives a correct account of the present bird, so far as its southern range 

 is concerned ; its extension northwards into Arizona was ascertained subsequently. 



5. Caprimulgus salvini. (Tab. LVlll. b.) 



Antrostomus macromystax, Baird, Brew., & Eidgw. (nee Wagler), N. Am. Birds, ii. p. 409 ' ; Boucard, 



P. Z. S. 1883, p. 451 \ 

 Caprimulgus salvini, Hartert, Ibis, 1892, p. 387 " ; Cat. Birds Brit. Mus. xvi. p. 568 *. 



Supra nigricans, fulvo et griseo minute irroratus, maeulis magnis nigris in capite summo undique dispersis, 

 cervice postica torque angusto rufescente, scapularibus et teotricibus alarum striis hastiformibus con- 

 spicue notatis : subtus gula nigricante f asciis tenuibus rufis, plumis gulee lateralibus albo variegatis, torque 

 cervicali alba, infra earn in pectore maeulis albis ; abdomine nigro rufo fasciato et macuIis albis conspicue 

 guttato, teotricibus subcaudalibus fulvis nigro sparsim fasciatis ; alis nigris, maeulis parvis rufls in pogoniis 

 ambobus ; cauda nigra, fasciis crebris iadistinctis maculosis grisescentibus supra notata, rectricibus tribus 

 externis macula magna alba terminata extrorsum inoresoente. Long, tota circa 11-0, alee 7'7, caudae 5*0, 

 tarsi 0'68, dig. med. cum ungue 0'9. (Descr. maris exempl. typ. ex Merida, Yucatan. Mus. nostr.) 



5 mari similis, maeulis caudalibus minoribus et isabellinis. 



Hab. Mexico, Nuevo Leon {F. B. Armstrong % Merida in Yucatan {G. F. Gaumer^). 



TMs bird is the Antrostomus macromystax of Baird, Brewer, and Eidgway ^ and subse- 

 quent American writers, but not C. macromystax of Wagler. This point has been 

 amply proved by Mr. Hartert, who found it necessary to give the bird a new name. 



"We have seen but few specimens of this Goatsucker, but a male obtained by 



49* 



