388 CAPRIMULGID. 
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 vinaceo-rufo, plumis singulis medialiter nigricantibus, corpore reliquo rufo et nigro minute 
irrorato; scapularibus maculis conspicuis hastiformibus nigris, tectricibus alarum majoribus similiter 
ornatis, minoribus quoque albo guttulatis: subtus fascia lata gulari candida, pectore vinaceo-rufo minute 
nigro irrorato, plumis singulis rhachidibus nigris; abdomine nigro et fulvo 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 85, ale 4:3, caude 3:8, tarsi 0°63, dig. med. cum ungue 0°75. (Deser. exempl. typ. ex 
Tizimin, Yucatan. Mus. nostr.) 
Hab. Mexico, 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 to the outer 
tail-feathers, so frequently characteristic of the male in Caprimulgide, makes us doubt 
if the sex has been correctly recorded. 
C. yucatanicus is the smallest of this section of Central-American Caprimulgide. 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 Otophanes 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. 8. 1870, p. 208’; Ridgw. 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, alis nigris in pogonio externo tantum maculatis, plaga alari alba nulla: subtus 
niger rufescente transfasciatus, vitta gulari alba nulla, ventre medio albo maculato; cauda nigra rufo 
transfasciata, rectricibus tribus utrinque externis albo late terminatis ; setis rictalibus longissimis. Long. 
tota circa 8°5, ale 6:1, caude 4:8, tarsi 0°65, dig. med. cum ungue 0°85. (Descr. maris exempl. typ. ex 
Volcan de Chiriqui. Mus. nostr.) 
Hab. Costa Rica, Volcan de Irazu (Alfaro*); Panama, Volcan de Chiriqui (Arcé?). 
A single male specimen sent us by our collector Arcé in 1870, in one of his collec- 
