Total length nine inches. Bill not quite an inch, and blackish. Irides yellow. Head slightly crested; the whole upper part crimson. Orbits and cheeks olive-brown; beneath this a narrow line of tawny-yellow begins at the nostrils and passes down the sides of the neck; next this is a similar stripe crimson on the jaws and olive beyond, leaving the chin and throat in front yellowish; the plumage above is tawny-olive. Quills black, within edged with rufous: all the under parts tawny-yellow, transversely banded with blackish lines; inner wing-covers yellowish. Tail three inches and a half long, the feathers black, unspotted, and tinged at their base with olive. Feet and claws lead-colour. The neck is very slender. The only one I have yet seen was a male. * * * * * Pl. 21 [Illustration] PROCNIAS hirundacea. _Swallow Fruit-eater._ * * * * * GENERIC CHARACTER. _Rostrum breve, trigonum, basi latissimum, dilatatum, versus apicem contractum: mandibulis emarginatis; marginibus intraflexis; mandibula superiore, tomiis curvatis, carinatis; inferiore recta, breviore. Nares latae, basales, subnudae; aperturis orbiculatis, approximantibus, apicem quam malam magis appropinquantibus. Lingua brevissima, angusta. Rictus amplissimi infra oculos aperientes. Pedes insidentes. Alae mediocres._ Typus Genericus _Ampelis carunculata_. Latham. Bill short, triangular, base very broad, dilated, towards the end contracted; both mandibles notched, the margins bent inward; upper mandible slightly curved and carinated above; lower mandible straight and shortest. Nostrils broad, basal, nearly naked, the aperture much nearer the tip than the gape of the bill. Tongue very short, narrow. Mouth very large, opening beneath the eye. Feet formed for perching. Wings moderate. Generic Type _Carunculated Chatterer_. Latham. OBS. MM. Temminck and Lagier had just before us, and without our knowledge, published this bird under the name of Procnias Ventralis, (Pl. 5.) by which name in right of priority it should stand in the system. * * * * * SPECIFIC CHARACTER. _P. (in maribus) caerulea; fronte, jugulo, temporibusque nigris; corpore subtus in medio albo, lateribus striis transversis nigrescentibus._ _(Foem.) viridis; mento temporibusque griseis; corpore infra flavescente, striis obscure-viridibus transversis._ (Male) blue; front, throat, and temples black; middle of the body beneath white, the sides with blackish transverse striae. (Female) green; chin and temples grey; body beneath yellowish, transversely striated with dusky-green. * * * * *