Collection of Australian Drawings, 335 



that the determination of many of these species is rendered 

 difficult by the rudeness of the designs, and by the changes 

 which some of the colours have undergone, especially the 

 whites, which being metallic colours have become oxydized, 

 and are now changed to black. Another difficulty arises from 

 some of the birds being drawn of the natural size and others 

 reduced, without any indication when this is the case, so that 

 the dimensions given by Latham from the drawings are often 

 faulty. Hence, after all the pains bestowed by Mr. G. R. Gray, 

 Mr. Gould, and myself, some few of the drawings still fail to 

 be identified with any known species. These may either re- 

 present true species unknown to modern science, or they may 

 possibly be, as Mr. Gould conjectures, mere inventions of the 

 artist. 



Page 189 of the present vol. After "Falco nisus, Lath.," insert 

 var. d. (This bird is the Accipiter torquatus, not Astur approximans, 

 J. G.) Also note that the larger species, Astur approximans of Vi- 

 gors and Gould, is unquestionably a true Accipiter and not an Astur. 

 (The true Falco radiatus of Latham is also not an Astur but an Ac- 

 cipiter, J. G.). 



(Falco lunulatus, Lath., is perhaps a young Ieracidea, J. G.*) 



(Lanius robustus, Lath., represents one of the numerous varieties 

 of plumage of Graucalus mentalis. It must now I suppose be called 

 Graucalus robustus, J. G.) 



Lanius erectus, Lath., judging from the figure, is more like a Ma- 

 lurus than a Falcunculus, but I am unacquainted with any species 

 like it. 



P. 190. Corvus versicolor, Lath., is a true species of Strepera, of 

 a gray colour, allied in form and size to Strepera graculina. I pos- 

 sess a specimen, and Mr. Gould has shot it in New South Wales. 

 The name versicolor being decidedly erroneous, Mr. Gould proposes 

 to call it Strepera cinerea. 



Corvus cyanoleucus, Lath. As this bird was also very accurately 

 described by Latham in his second Supplement under the name of 

 Gracula picata, and as the name picata is more correctly descriptive 

 than cyanoleuca, I should prefer making the permanent designation 

 of the bird Grallina picata (Lath.) rather than Grallina cyanoleuca 

 (Lath.). 



For Cuculus phasianus, Lath., read Cuculus phasianinus, Lath., 

 and it should therefore now stand as Centropus phasianinus. 



P. 191. (Certhia melanops, Lath. Syn. Sup. ii. p. 165. descrip- 

 tion 1, is perhaps the same as Glycyphilafulvifrons, J. G.) 



(Certhia melanops, var. Lath. /. c. description 2, is certainly Gly- 

 cyphilafulvifrons, J. G.) 



* Mr. Gould and I have compared the drawing of Falco lunulatus, Lath., 

 with specimens of Ieracidea berigora and Falco frontatus, Gould. Though 

 differing from both, it most resembles the Ieracidea. The name Falco fron- 

 tatus may therefore be allowed to stand. 



