BIRDS. 15 



Agrees with P. trivirgatus of Timor in its black upper tail-coverts, 

 which in the type specimens of P. gouldi are grey. 



In the 'Catalogue of Birds' (vol. iv. p. 419) I united Gould's 

 Monarcha albiventris with Piezorhynchus gouldi, but 1 now believe 

 that I was wrong in doing so. It may be a matter of opinion 

 whether the three forms here alluded to are more than local races or 

 subspecies ; but it is certain that the white-flanked individuals, P. 

 albiventris (Gould), have the upper tail-coverts blackish, whereas in 

 the rufous-flanked birds, P. gouldi (Gray), the tail-coverts are grey. 

 Thus my " Key to the Species" (t. c. pp. 413, 414) will have to bo 

 modified as follows : — 



a\ Upper tail-coverts black. 



a 6 . White ending to outer tail-feathers not 



exceeding an inch in length. 

 b R . White ending to outer tail-feathers 10- 

 1-2 inch. 

 a 7 . Four outer tail-feathers white at the 



ends; black throat-stripe narrow .. trivirgatus. 

 b 1 . Three outer tail-feathers white at the 

 ends ; black throat-stripe broad. 

 a 9 . Sides of body orange-rufous .... medhis. 



b s . Sides of body white albiventris. 



b". Upper tail-coverts grey ; sides of body 



orange-rufous gouldi. 



22. Cisticola exilis, Vig. Sf Horsf. 

 Sharpe, Cat. B. Brit. Mus. vii. p. 269 ; Bamsay, t. c. p. 185. 



a. N. Australia (not labelled). 

 A specimen in winter plumage. 



23. Cracticus nigrigularis {Gould). 



Gadow, Cat. B. Brit. Mus. viii. p. 95. 

 Cracticus robustus, Ramsay, t. c. p. 180. 



a. 6 . Port Curtis, Queensland, April 1881. Iris black ; bill grey, 

 with the tip black ; legs and feet black. 



24. Pachycephala melanura, Gould. 

 Gadoio, t.c. p. 185; Ramsay, t.c. p. 181. 



a. 3 . West Island, Sept. 1881. 



b, c. (3 . Booby Island, Aug. 1881. 



I am unable to follow Dr. Gadow in his conclusions respecting 

 P. melanura and its allies, P. clio, P. macrorhyncha, and P. obiensis, 

 all of which he unites together as a single species. Count Salvadori 

 has kept them distinct ; and their specific characters I have endea- 

 voured to set forth in the following " Key ": — 



