— 353 — 



a. h. 9 ad. Gane, Halmahera. 



c. ad. „ 



d. cf juv. „ „ 



e. juv. „ 

 f- g. d' 9 mim. „ 



Some important alterations require to be made in tbe specimens enuiüerated by me in the 'Cata- 

 logue of Birds' iinder the beading of Astur henicogrammus (p. 124'). Salvadori was so fortunate as to 

 possess a large series of tlie latter bird, containing some young ones, and some putting on tbc adult 

 plumage: these proved couclusively tbat our young birds in the Museum were wrongly determined, and tbat 

 spec. f. g. (p. 125) froni Waigiou sbould be referred to Ästur iorquatus, and tbat spec. h. from Salwatti 

 belongs to Astur etorques , wbile the type of A. henicogrammus belongs to Astur muelleri, Wallace (p. 8). 



By these changes a matter which puzzled both Mr. Wallace and myself becomes mucb simplified, 

 and bis Astur eqiiatorialis from Gilolo, Batcbian and Morty Island, must be considered identical witb 

 A. griseigularis. Some error has doubtless occurred in the sexing of the original specimens, and the smaller 

 birds, instead of being a lesser race, must be the males of the larger bird. This is a much more simple 

 explanation tban to credit Islands like Batcbian and Gilolo witb two species of Goshawk exactly alike and 

 differing only in size. I allowed (p. 125, note) the plumage of the young birds to influence me in keeping 

 tbe species distinct, but, as I have shewn ahove, these specimens were not correctly identified. 



3. Astur etorques. (Plate XXVIII.) 



ürospizias etorques, Salvad. Ann. Mus. Civic. Genov. VII, p. 901 (1875), IX, p. 11 (1876), X, p. 117 (1877) 

 Xn. p. 37 (1878). 



a. h. ad. Andei, N. W. New-Guinea, July 1873. 

 c. ? ad. Rubi, - - May 1873. 



Tbis appears to be a well-marked species, and is intermediate between A. henicogrammus, Gray 



{A. muelleri, Wall.), "and A. hiogaster. x\long witb a breast of almost the same colour as the latter species, 

 it has a greyish throat like A. henicogrammus. 



The foUowing are the measurements of Dr. Meyer 's three adult specimens, compared with otbers of 

 tlie allied forms in tbe collection of the British Museum. 



Astur etorques Long. tot. alte. caudre. tarsi. 



a. ad. Andei (Meyer) 4Ü0. 247. 198. 63. 



fc. ad. „ „ 420. 247. 203. 60. 



c. 9 ad. Rubi 380. 257. 190. 66. 



Astur hiogaster. 



d. [9 ?] ad. Amboyna 322. 195. 142. 52. 



e. 9 ad. „ (Wallace) 402. 213. 177. 57. 



Astur henicogrammus. 



/'. 9 ad. Halmahera {Wallace) 483. 256. 236. 71. 



g. ö" ad, „ {Bernstein) 318. 228. 177. 66. 



k. [rf'?] ad. „ 356. 217. 202. 61. 



4. Astur niisoriensis. 



ürospizias misoriensis, Salvad. Ann. Mus. Civic. Genov. VII, p. 904 (1875); id, op. cit. XII, p. 37 (1878). 



Long. tot. alfe. caudfe. tarsi. 



a. 9 juv. Kordo, Mysore, April 1873 290. 180. 140. 51. 



46 



