Zoological Society. 541 



the decisive Gallinaceous characters which are pointed out in the 

 sternum, vertebral column, and bones of the anterior extremity. 



" The presence of the broncho-tracheales, which alter the length 

 and tension of the bronchial tubes, widen the lateral diameter of the 

 lower larynx, and influence its position, coincides with the observa- 

 tions which Mr. Gould has made respecting the voice of the Tale- 

 galla ; and at the same time establishes another important structural 

 difference between this bird and the Vulturidce, which are precisely 

 those Raptorial birds in which there are no true vocal muscles. 



" From all the Raptor es the Talegalla essentially differs, in its 

 gizzard and elongated caeca : in the one we have all the characters 

 of the Gallinaceous structure of that important part of the digestive 

 system : in the form and proportions of the lower appendages — the 

 caeca, the Talegalla most closely corresponds with the genera Crax 

 and Penelope." 



Mr. Gould exhibited some new species of birds about to be figured 

 in the forthcoming part of his work on the "Birds of Australia;" 

 and characterized a new and beautiful Cinclosoma, from the belts 

 of the Murray, as 



Cinclosoma castanotus. CincL lined alhd a mandibulce inferioris 

 basi per genas excurrente : guld pectoreque nigris ; humeris et 

 uropygio castaneis. 

 Total length, 9 inches ; bill, 1 ; wing, 4^ ; tail, 4^ ; tarsi, 1 J. 

 A new Halcyon, as 



Halcyon pyrrhopygia. Hal. plumis capitis viridibus, anguste 

 alba marginatis ; humeris tectricibusque alarum majoribus cceru- 

 leis, uropygio, tectricibusque cauda fiavescenti-rubris. 

 Crown of the head dull green, intermingled with white, giving it 

 a striated appearance ; a broad black stripe commences at the base 

 of the bill, passes through the eye, and encircles the back of the 

 head ; upper part of the back and scapularies green ; remainder of 

 the wings bluish green ; lower part of the back, rump, and upper 

 tail coverts red ; tail green, tinged with blue ; throat, a broad collar 

 encircling the back of the neck, and all the imder surface white ; 

 bill black, the base of the lower mandible flesh white ; irides black- 

 ish brown ; feet dark olive brown. 



Total length, unc. 8 ; bill, 2 ; wing, 4 ; tail, 2^ ; tarsi, |. 

 Hab. Interior of New South Wales. 



A new species of Rhipidura, which has hitherto been confounded 

 with the Motacilla flabellifera of Latham, Mr. Gould proposed to 

 characterize as 



Rhipidura albiscapa. Rhi. nigrescenti-fusca ; reciricibus caudce 

 ad apices, et per scapos albis. 



All the upper surface, ear-coverts, and a band across the chest, 

 sooty-black, slightly tinged with olive, the tail and crown of the 

 head and pectoral band being rather the darkest ; stripe over the eye, 

 lunar-shaped mark behind the eye, throat, tips of the wing coverts, 

 margins of the secondaries, shafts, outer webs and tips of all but the 



