1910.] ON PARRAKEETS OF THE GENUS PSEPHOTUS. 537 



Type. Young adult male. B. M. No. 10.3.18.1. Original 

 number 515. Killed 4th Jan., 1910. Presented by Messrs. 

 Maturin and Brett through Mr. R. Kemp. 



This fine species of Potto was no doubt that from Uganda 

 mentioned by Sir Harry Johnston *, and, with the exception of 

 that mention, represented a considerable extension of the known 

 range of Perodicticus, the genus having been otherwise recorded 

 only from the West Coast. 



P. ibeanus was at once distinguishable from all others by the 

 hoary colour of its back, which contrasted markedly with its 

 blackish shoulders, the difference being due to the long hairs of 

 the former being broadly tipped with ashy, a character not found 

 in any other Potto. Its coat also was of an unusually soft rich 

 nature, in agreement with the considerable elevation of its 

 habitat. 



The specimen had been given by Messrs. Maturin and Brett to 

 Mr. R. Kemp, who was collecting for the National Museum on 

 behalf of Mr. C. D. Rudd. 



Mr. D. Seth-Smith, F.Z.S., M.B.O.U., Curator of Birds, 

 communicated the following account of some living examples, in 

 the Society's Gardens, of the Black-hooded Parrakeet {Psephotus 

 cueullatus North) : — 



The Society has recently acquired by exchange a pair of Parra- 

 keets of the genus Psephotus, which were originally obtained from 

 Mr. A. E. Jamrach, who informs me that in all ten pairs arrived in 

 Europe some few months since. These birds were at first believed 

 to be Golden-shouldered Parrakeets (Psephotus chrysopterygius), 

 and a pair was shown at a recent bird-show at the Crystal Palace 

 under this name. In examining the pair, however, I noticed 

 that the male bird lacked the yellow frontal band characteristic of 

 that species, and that the black marking on the head extended to 

 the base of the bill, over the lores and completely surrounded the 

 eye ; and moreover, the yellow patch on the wings appeared to 

 be more extensive than in P. chrysopterygius. I thought at first 

 that these birds were referable to a species described in the 

 P. Z. S. of 1898 by Professor Collett as Psephotus dissiinilis, but 

 on looking up the description of these I found that the crown is 

 chestnut according to Collett and dark brown according to Hartertf . 

 I have since discovered a reference to this black-crowned form in 

 the ' Victorian Naturalist ' for 1909, where Mr. North publishes a 

 note, dated Feb. 6, 1909, on these birds, probably the very lot 

 of which the Society's pair formed part. 



They were captured by Mr. Fritz Kruger in the Northern 

 Territory of South Australia, 200 miles south-east of Port 

 Darwin, which is the locality P. dissiinilis is said to inhabit. 



* ' Uganda,' vol. i. p. 364, 1902. 

 f Nov. Zool. vol. xii. p. 214 (1905). 



