1SG6. I MR. l\ L. SCLATER ON THK CAPRI MULGID.E. 585 



CaprimulgidtB, which have resulted principally from the examination 

 of the specimens of these birds belonging to the Derby Museum at 

 Liverpool (which have been kindly submitted to my inspection by 

 Mr. Thomas Moore) and those belonging to Mr. Lawrence s col- 

 lection (which that gentleman has most liberally sent over to me 

 from New York), together with some valuable notes communicated 

 to me by Herr von Pelzeln on the specimens in the Viecna collection. 



Genus Nyctibitjs. 



Dr. W. Peters has most kindly sent me over the type specimen of 

 Nyctibius rufus of Cabanis (antea p. 130), from an examination of 

 which it is at once apparent that, as already hinted by Burmeister 

 (Syst. Ueb. ii. p. 378), it is the same as Mr. Gould's N. bracteatus. 

 The latter name has precedence, unless we adopt Dr. Cabanis's sug- 

 gestion that the figure of the ' PI. Enl.' 735 is intended for this 

 species. I have also met with a skin which I believe to be referable 

 to the same bird, in the Paris Museum, collected by MM. Castelnau 

 and Deville at Pebas on the Upper Amazon. N. bracteatus is a 

 very well-marked species, from its small size, general red colouring, 

 and the conspicuous white spots on the scapulars, belly, and under 

 tail-coverts. Mr. Salvin and I intend to give a figure of this hand- 

 some bird in an early number of 'Exotic Ornithology.' 



Genus Antrostomus. 



Antrostomus cubanensis, Lawrence, Aim. L. N. H. New York, vii. 

 p. 260 (May 21, 1860), is unquestionably a different species from 

 any given in my previous paper. It is quite distinct from A. voci- 

 ferus (with which D'Orbigny, Lembeye, and Gundlach have united 

 it), being considerably larger in size, and having the white termina- 

 tions of the three lateral tail-feathers much narrower, as pointed out 

 by Mr. Lawrence. The bristles which border the gape of the upper 

 mandible are remarkably strong and long, much more so than is the 

 case in A. vociferus. Mr. Lawrence has kindly lent me his typical 

 specimen of this species, which may be placed next to A. vociferus. 



Herr von Pelzeln has kindly sent me the following note upon the 

 male of Antrostomus rufus (anteil p. 136) : — 



Mas afemina statura majore, torque infragulari albido et caudce 

 coloribus differt. Rectrices nigro ferrugineoque fasciolatce, 

 extima pogonio interno, sequentes utrinque dua utroque po- 

 gonio macula subterminali, 2-2£" longa, alba, extus et postice 

 ferrugineo marginata. 



Herr von Pelzeln considers that Buffon's wretched figure (PI. Enl. 

 735) cannot possibly be intended for this species ; and in some points 

 it certainly more nearly resembles Nyctibius rufus, as suggested by 

 Cabanis, Schomb. Guian. iii. p. 74 ; but the banded wings and long 

 tarsi forbid one referring it to the latter bird. It would, however, be 

 safer and more just to call this species A. rutilus, under which name 

 it was first described by Burmeister. 



Antrostomus sericeo-caudatus, antea. p. 137, sp. 3. Of this well- 



Proc. Zool. Soc— 1866, No. XXXVIII. 



