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3. DESCRIPTION OF A SECOND SPECIES OF THE GENUS PROCNIAS. 
By Puiuie Luriey Scuater, M.A. 
I have seen several examples of Procnias in collections from New 
Grenada, and have never doubted their being different from the Bra- 
zilian species. But being aware that a second member of the genus 
had been described by Dr. Cabanis in the Museum Heineanum under 
the appellation Proenias Heinei, I applied that name to these birds 
without much inquiry. Having lately however had the oppor- 
tunity of examining the beautiful collection which contains the type 
of Dr. Cabanis’ description, I find that I was in error in so doing. 
The specimen there designated Procnias Heinei is a female or young 
male of Calliste atricapilla, Lafr., and belongs therefore, according 
to my ideas, to a different family of birds. 
I therefore propose the name Procnias occidentalis for this new 
species, which may be distinguished from the older one by its smaller 
size, the less amount of black on the throat, and by the white belly 
not extending nearly so high towards the breast. 
PROCNIAS OCCIDENTALIS, Sclater. P. lete viridis: fronte an- 
guste et lateribus capitis cum mento gulaque nigris: ventre 
medio crissoque albis: lateribus nigro radiatis: alis caudaque 
intus ngricantibus. 
Long. tota 5:0; alee 3°3 ; caudz 2°9 poll. Angl. 
Hab. in Nova Grenada. 
London, Noy. 1854. 
4, DESCRIPTION OF A NEW SPECIES OF PETROGALE. 
By Dr. J. E. Gray, F.R.S., V.P.Z.S., etc. 
(Mammalia, Pl. XX XIX.) 
Yellow-legged Rock-Kangaroo, Petrogale xanthopus. 
Pale brown, minutely grizzled ; chin and beneath white: streak 
on side from the back of shoulder, and along the side of the face 
under the eye, whitish ; dorsal streak narrow, brown ;’ legs, feet, and 
tail bright yellow ; end of tail more bushy and var ied with brown. 
Australia (Richmond River ?) 
This species has all the markings as in Petrogale lateralis, but 
differs in being of a much paler and yellower colour, and in the 
bright yellow colour of the legs and basal part of the tail. It is 
about the same size as P. penicillatus, or rather between it and 
P. lateralis. 
There are two specimens of this species Gasle and ipale) pro- 
cured by Mr. Strange. So Ln 
