388 CAPEIMULGID^. 



Dr. Gaumer on 7th January, 1879, near Merida in Yucatan has long been in our posses- 

 sion. Mr. Armstrong obtained us another in the North Mexican State of Nuevo Leon. 

 It would thus appear to approach the limits of the United States, but at present there 

 is no evidence of its crossing the frontier. Of its habits nothing has yet been recorded, 

 but it is probably resident in the countries in which it is found. 



6. Caprimulgus yucatanicus. (Tab. LVIII. a.) 



Caprimulgus yucatanicus, Hartert, Cat. Birds Brit. Mus. xvi. p. 575 \ 



Supra capite summo yinaceo-nifo, plumis singulis mediaUter nigricantibus, corpore reUquo rufo et nigro mmute 

 irrorato; scapularibus maoulis conspicuis hastiformibus nigris, tectricibus alarum majoribus similiter 

 omatis, minoribus quoque albo guttulatis : subtus fascia lata gulari Candida, pectore vinaceo-rufo minute 

 nigro irrorato, plumis singulis rhachidibus nigris ; abdomine nigro et Mvo vermiculato, maculis albidis 

 quoque notato ; alis nigricantibus, pogoniis ambobus rufo regulariter maculatis ; cauda (imperfecta, rectri- 

 cibus quatuor mediis absentibus) rectricibus tribus utrinque lateralibus albo anguste terminatis. Long, 

 tota circa 8-5, alffi 4-3, caudae 3-8, tarsi 0-63, dig. med. cum ungue 075. (Descr. exempl. typ. ex 

 Tizimin, Yucatan. Mus. nostr.) 



Eah. Mezico, Tizimin in Yucatan {G. F. Gaumer^). 



A single specimen shot on 10th June, 1879, by Dr. Gaumer, is the only example we 

 have seen of this singular species. It is marked as a female, and so recorded by 

 Mr. Hartert, but the pure white band across the throat and the white tips fo the outer 

 tail-feathers, so frequently characteristic of the male in Caprimulgidse, makes us doubt 

 if the sex has been correctly recorded. 



C. yucatanicus is the smallest of this section of Central-American Caprimulgidse. It 

 has no near allies, though some of its markings, especially the size and shape of the 

 terminal white spots to the tail, call to mind C. ocellatus of South America. These 

 spots are similarly shaped in Oto^hanes macleodi. The comparative length of the 

 outermost primary in both these species appears to be similar, but, unfortunately, our 

 specimens (one of each) are not in sufficiently good condition to make a satisfactory 

 comparison. ■ At a future time, with better materials, it would be well to examine 

 further into the relationship subsisting between these two forms. 



7. Caprimulgus saturatus. (Tab. LVIII.) 



Antrostomus saturatus, Salv. P. Z. S. 1870, p. 203 ' ; Kidgw. Pr. U. S. Nat. Mus. xvi. p. 609 ' ? 

 Caprimulgus saturatus, Hartert, Cat. Birds Brit. Mus. xvi. p. 572 \ 

 Antrostomus rufomaculatus, Ridgw. Pr. U. S. Nat. Mus. xiv. p. 466 *. 



Nigricans, rufo-maculatus, aUs nigris in pogonio externo tantum maculatis, plaga alari alba nuUa : subtus 

 niger rufescente transfasciatus, vitta gulari alba nulla, ventre medio albo maculato ; cauda nigra rufo 

 transfasciata, rectricibus tribus utrinque extends albo late terminatis ; satis rictalibus longissimis. Long. 

 tota circa 8-5, alae 6-1, caudfe 4-8, tarsi 0-65, dig. med. cum ungue 0'85. (Descr. maris exempl. typ. ex 

 Volcan de Chiriqui. Mus. nostr.) 



Bab. Costa Eica, Volcan de Irazu (Alfaro^) ; Panama, Volcan de Chiriqui (ArcS^). 

 A single male specimen sent us by our collector Arce in 1870, in one of his coUec- 



