548 REVIEW OF GENUS rsiTTACULA. 



AVIiat this bird is 1 am uuablo to say. Possibly it is the female of 

 1\ fidateri Gray, or it may be a distinct species. 



6. Psittacula passeriiia Cau., ncc LiN.v. 



rsittacula passeriiia Cxn., in Sciioml). Guiaua, iii, l^sls, 7'^G {iicc i'sj«<ic«s j>«««eri»i»<s 



Linn-.). 

 ? rsittactila (/trijaria Cab., t. c, p. 727. 



No description is given under either of these names which will enable 

 us to identify the species referred to. That the former is a blue-rum ped 

 bird, however, is evident from the following observations of Schomburgk, 

 under P. gregarius. 



"Does not diller in its habits from the foregoing ['P. j)asseri?irt,' i. c, 

 bhie-rumped specimens] and occurs like that more commonly on the 

 coast than in the interior. It also occurs to me that this species is by 

 no means valid, and that it is only a young bird or the female of the 

 foregoing, because, wheuever I killed more of them at one shot there 

 were always among them some with blue on the back, while others did 

 not possess it. That two different species should unite into one tlock 

 would be a peculiarity only to be fouiul in this case." 



What this bird can be is, of course, purely conjectural ; no iden titled 

 blue-rumped species is known to occur in Guiana, but possibly the new 

 P. cxqnisita of Colombia may, in certain districts, extend that far east. 

 The green-rumped bird {'■'-P. gregarius'''') if not the female of the blue- 

 rumped bird, as suggested by Schomburgk (which it probably is), might 

 be P. guianensis (Swains.). 



Smithsonian InstitutioxN, Xovemher 18, 1887. 



