1S66.] MR. P. L. SCLATKR ON THE CAPR1MULG1D.E. 5S9 



Ilab. in Paraguay (Azara) ; Brasil. merid. Irisanga (Natterer). 



" Like S. cayennensis (to which it has been united by most authors), 

 but larger, tail truncate, not furcate, and coloration notably different. 

 The broad rounded primaries, dark brown below, the truncate tail, 

 and the colours of the neck and breast remind one of Heleothreptua 

 anomcdus. 



" The peculiar coloration of this bird might lead one to suspect 

 its being an albinoid variety ; but, on the other hand, the regularity 

 of the markings, and its perfect agreement with Azara's description, 

 together with the circumstance that the last-named naturalist ob- 

 served several individuals, seem to indicate that we have in this case 

 the normal coloration of the species." 



Herr von Pelzeln has also kindly furnished me with descriptions 

 of two additional species in the Vienna Collection, which he refers 

 to the same genus, namely : — 



Stenopsis langsdorfi, Pelzeln. 



S. corpore supra albescente griseo, plus minusve ochraceo tincto, 

 punctis etfasciis nigris minutis marmorato, pilei plumis mediis 

 fasciam longitudinalem formantibus et scapularibus centro 

 nigris, inter dum ochraceo transverse fascia tis, remigutn secundo 

 longissimo, primo 2'", tertio V", quarto 6'" breviore ; omnibus 

 brunneo-nigris, tota longitudine fasciis ochraceis 5-6 ornatis ; 

 mento et stria utrinque ad aures ducta albidis, lateribus colli, 

 gula et pectore castaneis nigro undulatis, idtimis passim striis 

 albidis obsoletis; gastrceo reliqno pallide ochraceo, plumis ab- 

 dominis superioris fasciis brunneis interruptis 7-9, rectricibus 

 duabus mediis dorso concoloribus, ad scapum fasciis transversis 

 brevibus brunneis 7, versus basin obsoletis ; lateralibus pallide 

 ochraceis, fasciis 10-11, interstitiis brunneo marmoratis, rec- 

 tricibus omnibus ejusdem longitudinis ; rostro pallide comeo, 

 apice nigrescente ; pedibus pallidis. 

 Long, tota (specim. exsiccati) 7|", alse 5" 9'", caudse 4'", rostri a 

 naribus 2|'". 



Hub. in Brasilia orient. Cuyaba (Natt., sp. no. 1150). 

 " Of this species Natterer only obtained a single example, from 

 Herr Langsdorf in Cuyaba. In many respects it comes near the 

 foregoing species, but differs in its narrower, more pointed, and 

 entirely banded wings (of which the second primary is the longest), 

 in the ochre yellow of the underside, and the banded tail. Yet such 

 are the variations of sex and age in the Caprimulgidce, that I con- 

 sider it very possible that it may turn out that this is only the young 

 female of Stenopsis candicans." 



Stenopsis platura, Pelzeln. 



Caprimulgus platurus, Natt. MS. (sp. no. 421). 



S. fronte et linea utrinque superciliari ferrugineis, notao vires- 

 cente nigro ; capite ferrugineo, reliquis partibus ferrugineo 

 vel griseo punctulatis vel fasciolatis, torque nuchaliferruginea, 

 scapularibus et alarum tectricibus majoribvs macula magna 



