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Show 1S66.] Mil. P. L. SCLATER ON THE CAPR1MULG1D.E. 589 Hab. in Paraguay (Azara) ; Brasil. merid. Irisanga (Natterer). "Like 5. 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 Heleothreptus anomalus. "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 observed 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 et fasciis nigris minutis marmorato, pilei plumis mediis fasciam longitudinalem formantibus et scapularibus centra nigris, interdum ochraceo transverse fasciatis, remigum secundo longissimo, primo 2'", tertio 1'", 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, ultimis passim striis albidis obsoletis ; gastraro reliquo pallide ochraceo, plumis abdominis 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, rectricibus omnibus ejusdem longitudinis; rostro pallide corneo, apice nigrescente; pedibus pallidis. Long, tota (specim. exsiccati) 7|", alse 5" 9'", caudae 4'", rostri a naribus 2|"'. Hab. 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 Caprimulgidar, that I consider it very possible that it may turn out that this is only the young-female of Stenopsis candicans." STENOPSIS PLATURA, Pelzeln. Caprimulgusplaturus, Natt. M S . (sp. no. 421). S.fronte et linea utrinque superciliari ferrugineis, notaro vires-cent e nigro ; capite femtgineo, reliquis partibus ferrugineo vel griseo punctulatis vel fasciolatis, torque nuchali ferrugineo, scapularibus et alarum tectricibus majoribus macula magna |