PAT,.EORNITniN.E. 387 



sometimes very long and graduated, sometimes short and square, or 

 wedge-shaped ; wing generally with the second and third quills the 

 longest. Sexes mostly different. 



Range. Australian, Oriental, and Ethiopian Regions. 



Key to the Genera. 



a. Bill thick, deeper than long. 



a . Gonys with a distinct ridge or keel along 

 the middle. 

 a". Tail long or moderate. 



a". Plumage with no black bars. 



a x . Tail moderate, square or nearly so. 

 a 6 . Central tail-feathers normal. 

 « B . Upper mandible notched ; nos- 

 trils concealed ; size large : 



males green, females red .... 30. EcLKCTUS, p. 388. 

 £". Upper mandible not notched ; 

 nostrils exposed ; size mode- 

 rate ; plumage green ; head 

 mostly red in males, brown in [p. 399. 



females 31. Geoffroyus, 



Ifi. Central tail-feathers spatulated . . 32. Prioniturus, 

 i 4 . Tail not square. [p. 414. 



c\ Tail moderate. 



c*. Tail rounded ; bill moderate, [p. 421. 



red ; nostrils concealed 33. Mascarinvs *, 



f/ 6 . Tail nearly cuneated ; bill very 

 deep and powerful, with the 

 anterior surface of the lower [p. 422. 



mandible very broad 34. Tanygnathus, 



d 5 . Tail long and graduated. 



e s . Tail-feathers narrow, especially 

 the two central ones. 

 a 1 . Bill stronger, with the upper 



mandible notched: frequently [p. 433. 



a collar round the hind neck. 35. Pal^eorxis f , 

 b". Bill weaker, with the upper "p. 477. 



mandible not notched 36. Poly'telis, 



* I have followed Mr. Forbes (Ibis, 1879, p. 307) in placing Mascarinns 

 near Tanygnathus. 



t The following extinct genus finds its place next to Palceornis: — 



Necropsittacvs. „ 



Type. 

 Necropsittacus, A. Mllne-Kdw. Ann. d. Sc. Nat. (5) xix. 



Art. 3, p. 18 (1874) N. rodericanus. 



Necropsittacus rodericanus. 

 Psittacus rodericanus, A. MUne-E<lw. Ann. Sc. Xat. (5) viii. pp. 151-155, 

 pi. 7. ff. 1, 2 (.tip of tlie "Pper mandible) (1867) ; id. Compt. Kend. Ac. Sc. 

 Paris, lxv. pp. 1121-1125 (1867); id. Ann. Sc. Nat. (5) xix. Art. 3, 

 pp. 16-18, pi. 13. ff. 2, 2 a, 2i (upper mandible). 2 c, 2d, 2 9 (under 

 mandible) (1874). 



2 o 2 



