PSITTACULA. 581 
tail is short and but slightly cuneate, the rectrices pointed; there is a tufted oil-gland, 
but no furcula (Salvadori). 
‘The ten or twelve species composing the genus are distributed over nearly the whole 
of continental Tropical America from Western Mexico to Brazil and Bolivia. Only 
one species is found within our region, and this is peculiar to the Tres Marias Islands 
off the coast of Western Mexico, and the mainland opposite from Sonora to Manzanilla. 
The next species in point of distance is found in Colombia, leaving a wide hiatus in 
the range of the genus unoccupied by any species of Psittacula. 
1. Psittacula cyanopygia. 
Psitiacula cyanopygia, Souancé, Rev. et Mag. Zool. 1856, p. 157’; Icon. Perr. t. 42 (1857) ?; 
Finsch, Abh. nat. Ver. Bremen, 1870, p. 853°; Grayson, Pr. Bost. Soc. N. H. xiv. p. 271‘; 
Ridgw. Pr. U.S. Nat. Mus. x. p. 540°; Salvad. Cat. Birds Brit. Mus. xx. p. 249°. 
Psitiacula cyanopyga, Salv. Ibis, 1871, p. 100"; Lawr. Mem. Bost. Soc. N. H. ii. p. 297°; Salv. 
& Geodm. Ibis, 1889, p. 242”. 
Psittacula insularis, Ridgw. Pr. U. 8. Nat. Mus. x. p. 541 °°. 
Psittacula cyanopyga pallida, Brewster, Auk, vi. p. 85". 
Pallide viridis, fronte, capitis lateribus et corpore subtus dilutioribus ; dorso postico, uropygio, tectricibus 
subalaribus et axillaribus pallide ceruleis; tectricibus remigum, secundariis et remigibus internis ad basin 
saturatiore ceruleis, margine alarum viridi: alis subtus fuscis viridi-ceruleo lavatis, tectricibus supra- 
caudalibus et cauda viridibus ; rostro pallide corneo, ad basin fusco ; pedibus fusco-carnescentibus. Long. 
tota circa 5:0, ale 34, caude 1°6, rostri culminis 0:6. 
Q mari similis, sed omnino viridis, colore cxruleo omnino absente. (Descr. maris et femine ex Mazatlan, 
Mexico. Mus. nostr.) 
Hab. Mexico, Alamos (frazar™), Sierra de Alamos (Lloyd), Mazatlan (Grayson? 48, 
Bischoff’), Presidio de Mazatlan (Forrer), Tres Marias Is. (Grayson+1°, Forrer), 
Manzanilla Bay (Xantus §), Jalisco (U. S. Nat. Mus.). 
The types of this species, from the Massena collection, are in the British Museum ©. 
They are marked as from Bolivia, but no doubt wrongly. They are quite as dark as 
the birds from the Tres Marias Islands which Mr. Ridgway separated as P insularis 1°. 
Mr. Brewster subsequently described a pale form from Sonora as P. cyanopygia pallida 1. 
Col. Grayson noticed that the island bird differed somewhat from that of the mainland. 
Lawrence placed them together in 1874 §, but Mr. Ridgway separated them in 1889 1°. 
Count Salvadori again, in 1891, united all three forms under the oldest title ®, and we 
follow him in so doing. The island birds are a little darker, but the difference is very 
slight. ‘Two Sonora specimens from the same place as Mr. Brewster's types of P. ¢. 
pallida are in rather abraded plumage, but are so close to the typical birds that we 
see no grounds for separating them. It may be remarked that the materials for a 
_ satisfactory comparison of the supposed races of this Parrot do not exist in any one 
museum, so that there may be more difference between them than appears from the 
ten specimens before us. The only fully adult male specimen we have seen is the type 
of that sex. 
