PRIONITURUS. Ages, 
238. PRIONITURUS WATERSTRADTI Rothschild. 
WATERSTRADT’S RACKET-TAILED PARRAKEET. 
Prioniturus waterstradti ROTHSCHILD, Bull. Brit. Orn. Club (1904), 14, 
72; Hartert, Novit. Zool. (1906), 13, 756; Grant, Ibis (1906), 
495; McGregor and WorcESTER, Hand-List (1906), 49. 
Mindanao (Waterstradt, Goodfellow). 
Male.—‘‘Forehead to the eyes pale blue, the feathers being green at 
base; lores and sides of face greenish blue; sinciput and nape grass- 
green; scapulars and back green with a slight brownish tinge; rump 
light greenish brown; wings outwardly bright green, inner webs of 
remiges, blackish from above, pale bluish from below ; upper wing-coverts 
grass-green, slightly tinged with blue near bend of wing; rectrices, bright 
green from above, bluish from below, tipped with dull black for about 
12 to 14 mm., the central pair quite green except the shaft and spatules, 
which are dull black; entire under side uniform yellowish green. Bill 
(in skin) whitish with leaden-gray base; feet dark gray. Wing, 152 to 
157; tail, about 66, with lengthened central pair, 120 to 140; culmen 
from cere, 22; metatarsus, 15. One specimen marked ‘9’ is similar 
to the male.” (Rothschild.) ; 
This species is known from specimens collected by Waterstradt on 
Mount Apo at 900 meters elevation, and by Goodfellow at 2,500 meters. 
239. PRIONITURUS  MINDORENSIS Steere. 
MINDORO RACKET-TAILED PARRAKEET, 
Prioniturus mindorensis STEERE, List Birds and Mams. Steere Exped. (1890), 
6; SALVADORI, Cat. Birds Brit. Mus. (1891), 20, 419; SHARPE, Hand- 
List (1900), 2, 29; McGrecor and WorcEsTER, Hand-List (1906), 49. 
Mindoro (Steere Exp., Schmacker, Everett, Bourns & Worcester, Whitehead, 
HcGregor, Porter). 
Male.—Most nearly related to P. discwrus but distinguished by the 
crown patch which in mindorensis is blue with a slight violet tinge and 
is sharply defined in front against the green forehead; the bill is larger 
and the rackets are never so long as in adult specimens of discurus. 
Length, including rackets, 317; wing, 165; tail without rackets, 90; 
culmen from front margin of cere, 22. 
Female.—Similar to female of discurus but often with traces of the 
violet crown patch. Length, including rackets, 300; wing, 160; tail 
without rackets, 90; culmen from front margin of cere, 21. 
“Three males average, 268 in length, exclusive of rackets; wing, 162; 
tail, 135; culmen, 20; tarsus, 21; middle toe with claw, 28. A female 
measures, 261 in length; wing, 154; tail, 118; culmen, 21; tarsus, 15; 
middle toe with claw, 27. Iris light straw-yellow, nearly white ; legs, feet, 
and nails light leaden; bill pale horn-color.” (Bourns and Worcester 
MS.) 
