212 THE PROCEEDINGS OF THE LINNEAN SOCIETY 



to the deep rufous tint, on the under surface of the females of the 

 Western examples, of the so-called P. gutturalis; and after com- 

 paring a very large number of specimens from both New South 

 Wales, and Western Australia, I have come to the conclusion that 

 although closely allied, they are specifically distinct. Mr. Gould's 

 description, and the plate of the P. gutturalis in his work, have 

 evidently been taken from Western examples, from which the 

 Turdus gutturalis of Latham may be easily distinguished. 



Pachtcephala occidentalis, sp. nov. 



Pachycephala gutturalis ; Gould Bds. of Australia, fol. Vol. II. 

 pi. 64 ; id. Handbook, Birds Australia, I. p. 207. 



Adult male. Like Pachycephala gutturalis, Lath., but distinct, in 

 having the tail grey without any wash of olive on the margins 

 of the basal portion of the feathers, the blackish subterminal 

 band, in width less than one-third of the total length ; the yellow 

 neck band very indistinct, or broken on the back of the neck, 

 the olive of the upper surface of a more greenish tint, and the 

 yellow of the under surface slightly paler. 



Adult female. Like that sex of P. gutturalis, Lath., but having 

 the lower part of the chest, flanks, the abdomen, and under tail 

 coverts rufous-buff, under wing coverts light rufous-buff. 



Sexes alike in size ; total length 6*4 in., wing 3*55 in., tail 

 3*1 in., tarsi 0'9 in., bill from forehead 0*6 in. 



In the Pachycephala gutturalis, Lath, of N. S. Wales, the male 

 has the basal half of the tail grey, and always washed with olive, 

 of the same tint as the back, and the subterminal blackish band 

 extends towards the base for at least one-half of the total length ; 

 the yellow neck-band is well-defined on the back of the neck. In 

 the females the lower part of the chest is ashy grey, becoming 

 white on the abdomen and under tail- and wing-coverts. These 

 differences will at once serve to distinguish the two species. 



