540 PSITTACID^E. 



b. Tail with cross bands from the base to the 

 tip. 

 c'. Tail long, longer than the wing; nails 



long and straight 54. Pezoporus, p. 596. 



d'. Tail short, shorter than the wing ; nails [p. 597. 



short and curved 55. Geopsittacus, 



1. PLATYCERCUS. Type 



Platycercus, Jiff. Zool. Journ. i. p. 527 (1825) P. elegans. 



Range. Australia, Tasmania, and Norfolk Island. 



Key to the Species *. 



a. Cheeks blue. 



a'. Underparts red. 



a". Underparts crimson elegans, p. 541. 



b". Underparts pale red, each feather slightly 



fringed with yellowish adelaidce, p. 543. 



V . Underparts yellow ; a red band on the fore- 

 head. 

 c". Underparts pale or straw-yellow ; middle 



tail-feathers dull blue . . .' faveohis, p. 544. 



d". Underparts jonquil-yellow ; middle tail- 

 feathers dark olive-green flaviventris, p. 545. 



b. Cheeks white and blue ; under tail-coverts red. 

 c'. Head pale yellow ; underparts blue. 



e". Edges of the feathers of the back bright 

 yellow ; cheeks white, bordered with blue 



below, sometimes entirely white pallidicejis, p. 547. 



/". Edges of the feathers of the back straw- 

 yellow ; cheeks almost entirely blue, only 



on the upper part white amathusia, p. 548. 



d'. Head black; cheeks white, bordered with 



blue below broioni, p. 549. 



e'. Head red erythropeplus, p. 550. 



c. Cheeks white ; head red. 

 /'. Upper tail-coverts green. 



ff". Edges of the feathers of the back yel- 

 lowish green eximius, p. 551. 



h''. Edges of the feathers of the back gam- 

 boge-yellow spendidus, p. 553. 



ff'. Upper tail-coverts red ; edges of the feathers 

 of the back red ; underparts entirely red ; 

 bases of the quills white ignitus, p. 553. 



d. Cheeks yellow ; head and underparts red. 



li . Smaller: total length 10 - 5 inches; rump 

 and upper tail-coverts gTeen ; central tail- 

 feathers green icterotis, p. 554. 



* I do not know to which species the following reference is to be attributed, 

 as it is not accompanied by any description : — 



Platycercus paradiseus, Buss, Journ. f. Om. 1871, p. 236. 



