INSESSORES. 187 



its also occurring on tlie shores of the opposite part of the 

 continent. 



The male has the crown of the head, ears, and back of the 

 neck black ; back, shoulders, and rump delicate grey ; upper 

 tail-coverts white ; tail black, largely tipped with white on the 

 inner webs, except the two middle feathers, which are wholly 

 black ; space between the bill and the eye, middle of the 

 secondaries, greater wing-coverts, throat, and all the under 

 surface white ; primaries black ; bill bluish lead-colour at the 

 base, passing into black at the tip ; legs black. 



The female differs in being browner, and less distinct in all 

 her markings. 



Total length 12^ inches ; bill If ; wing 6 ; tail 5f ; tarsi 1^. 



Sp. 101. CRACTICUS LEUCOPTERUS, Gould. 



White-winged Crow-Shrike. 

 Bulastes leucopterus, Cab. Mus. Hein. Theil i. p. 67. 



Cracticus leucopterus, Gould, Birds of Australia, foL, vol. i. Introd. 



p. XXXV. 



This species, which inhabits Western Australia, is very 

 closely allied to C. torquatus and C. cinereus ; but differs from 

 the former in the white mark on the wings being much more 

 extensive, and from the latter in its smaller size. 



ramily ? 



Genus GRALLINA, Vieillot. 



The only known species of this form is one of the anomalies 

 of the Australian avifauna ; for its alliance to any group with 

 which we are acquainted is very limited. Its colouring and 

 general contour remind us of the MotacillcB; but its habits 

 and mode of nidification clearly indicate that it must not be 

 associated with those birds. Uncertain where to place it, I 



