244 Mr. Vigors's Sketches in Ornithology. 



the contiaent of New Holland, such as Plat, Brownii, Baueri^ 

 &c., immediately connected with the foregoing, have tails whicli 

 partially desert the cuneated form ; while Others, as Plat, scapu- 

 latusy erythropterus^ &c., with tails becoming nearly even, in 

 conjunction with the Madagascar bird now before us, beautifully 

 unite the whole group with the Parrots of continental Africa, in 

 which the even tail predominates. Although I deviate in some 

 measure from our immediate subject, I can not avoid noticing the 

 connection which the same Australian group has on the other side 

 with the Continent of India, through means of the Palceornis 

 Barrabandi^ This New Holland species, with its comparatively 

 elongated ^am, brings those ground Parrakeets of Australia, which 

 have lengthened and cuneated tails, into immediate contact with 

 the Indian group of Palceornis, The continued chain of geo- 

 graphical affinities which unites this division of the Parrots is 

 singularly conspicuous and beautiful. 



With this addition to the genus PlattjcercuSy the group is com- 

 posed of the following i&fteen species which may be referred to in 

 the different Museums of this Metropolis. To these Psitt, niger, 

 Linn., may be added, and most probably also Psitt, Mascarinus^ 

 Linn., which belongs to the same locality, and appears, as far as 

 can be judged ffom a figure and description, to possess the same 

 characters. 



* Cauda subaqualt, 



1. Plat. Vasa. Le VaiU., Hist, des Perr. pi 81. 

 In Vivario Societatis Zoologicae. 



2. Plat, scapulatus. Linn, Trans., Vol, XV* p. 284. 

 In Mus. Soc. Zoologicae, multisque aliis. 



3. Plat, erythropteuus. Linn, Trans., Vol, XV. p- 284. 

 In Mus. Soc. Linnaeanae. 



4* Plat. Pennantii. Linn. Trans^, Vol, XV. p. 280. 



In Mus. Soc. Zoologicae^ aliisque. 

 b. Plat, flaviventris. Linn. Trans., Vol, XV. p. 281. 



In Mus. Societatum Linn, et Zool. 

 6. Plat, eximius. Linn, Trans., Vol, XV. p. 281. 



In Mus. Soc. Zoologicae, aliisque. 



