280 MANUAL OF PHILIPPINE BIRDS. 



240. PRIONITURUS CYANEICEPS Sluirpe. 



BLUE RACKET-TAILED PARRAKEET. 



Prioniturus cyaneiceps Sharpe, Ibis (1888), 194; Hand- List (1900), 2, 

 29; Salvadori, Cat. Birds Brit. Mus. (1891), 20, 419; McGregor and 

 Worcester, Hand-List (1906), 49. 



Balabac (Steere, Everett) ; Calamianes {Bourns d Worcester, Mcilregor] ; 

 Palawan (Whitehead, Platen, Steere Exp., Bourns d- Worcester, Celestino, White). 



Male. — All of head, neck, and under parts bright verditer-blue, a little 

 duller below where the feathers are yellowish at base, this when specimen 

 is held toward the light, away from the light the blue parts become light 

 bluish green; under tail-coverts bright greenish yellow and tipped with 

 green; wings, back, and rump grass-green; tail-spatules black, touched 

 with green; short rectrices green, deep blue along the shaft, tip black. 

 Bill bluish white ; legs blackish. A male from Palawan measures : Wing, 

 150; tail without rackets, 77 ; culmen from front margin of cere, 19. 



Female. — Differs from the male in having the blue restricted to top 

 and sides of head and in having the lower parts uniform light green with 

 traces of blue; under tail-coverts deeper yellow than in the male. 



Young. — "Green, with no verditer-blue shade on the head and neck; 

 greater wing-coverts and secondaries edged with yellowish green; under 

 parts yellowish green; under tail-coverts yellow, washed with greenish; 

 middle tail-feathers longer than the lateral ones, narrow towards the point 

 and entirely webbed." (Salvadori.) 



"Ten males from Busuanga measure, 238 in length (exclusive of 

 rackets, which may attain a length of 60 to 75) ; wing, 154; tail, 77; 

 culmen, 19 ; tarsus, 14; middle toe with claw, 26. Seven females average, 

 233 in length; wing, 150; tail, 76; culmen, 19; tarsus, 15: middle toe 

 with claw, 26." (Bourns and Worcester MS.) 



241. PRIONITURUS LUCONENSIS Steere. 

 LUZON RACKET-TAILED PARRAKEET. 



Prioniturus Inconensis Steere, List Birds and Mams. Steere Exped. ( 1890), 

 G; Salvadori. Cat. Birds Brit. :srus. (1S91). 20, 420 ; AIcOkkgor and 

 Worcester, Hand-List (1906). 49. 



Prioniturus luzonensis Sharpe, Hand-List ( 1 9(i() ) . 2, 29. 



Luzon {Steere Exp., Whitehead, McGregor) ; Marindiique {Sleerc Exp.) . 



Male. — General color bright yellow-green, very slightly darker on back 

 and rump ; alula, primaries, and coverts dark green ; short rectrices green 

 above, with wide dark tips; spatules black and dark blue. Iris dark 

 brown ; bill and feet liglit blue ; nails horn-blue. Sexes alike ? Length, 

 with rackets, about 305 ; two males from Mariveles, Bataan Province, 

 measure, wing, 140 to 143 ; tail without rackets, 67 to 73 ; culmen from 

 cere, 17 to 18; tarsus, 13 to 14. 



"Immature. — Differs from the adult in having the middle tail-feathers 



