the Imperial Collection at Vienna. 45 



Lord Howe's Islands, is now extinct, as it has not been seen 

 recently on either of these islands. In Mr. Salvin's record 

 of Mr. Edward S. HilPs paper on Lord Howe's Island (Ibis, 

 1871), mention is made of a white bird, like a Guinea-fowl, 

 which, if not actually extinct, seems on a fair way to become 

 so, and which is, as Mr. Salvin remarks, very probably the 

 same as Gallinula alba, Lath. To Mr. A. Newton (Ibis, 1866) 

 we owe the notice that, besides the specimen in the Imperial 

 Museum at Vienna, there is a second in the Derby Museum 

 at Liverpool, from Bullock's collection*. 



ANATID^E. 



96. Plectropterus gambensis (Linne). (173.) 



The specimen, probably that figured by Lath. (Gen. Syn. 

 vi. 452, t. 102), was transferred to the duplicates in the year 

 1832. It seems also to have been the original of Shaw's plate 

 (Mus. Lever. 231, t. 56.). 



97. Anser c^erulescens (Linne). (105.) 

 Blue-winged Goose, Edwards, t. 152; Lath. Gen. Synops. 



vi. 469. 28 (Mus. Lever.) . 



Anas carulescens, Linne, Syst. i. 198. 12; Gmel. Syst. i. 

 513; Lath. Ind. Orn. ii. 836. 13. 



Anser carulescens (L.), Cassin, Proc. Acad. Philad. viii. 

 (1856) 12 ; Schlegel, Mus. Pays-Bas, Anseres, 108. 



Specimen from North America. 



This Goose was frequently believed to be the younger bird 

 of Anser hyper boreus (Pall.) ; and even Baird (Rep. 761) doubts 

 the specific difference of the two birds, a difference which 

 seems to me to hold good. Latham mentions that this species 

 was in the Museum Leverianum ; but his description seems to 

 be taken from that of Edwards, with which our specimen 

 agrees tolerably well. 



98. Bernicla jubata (Lath.). (145.) 



Hawkesbury Duck, Lath. Gen. Synops. Suppl. ii. 358, pi. 

 in titlepage. 



Anas jubata, Lath. Ind. Orn. Suppl. lxix. 



* Herr von Pelzeln has just forwarded us a drawing of this species, from 

 which it is our intention to have a Plate prepared for our next Number. 



