Letters, Extracts from Correspondence, Notices, S^c. 547 



lately described by Prof. Peters under the name of Cichladusa 

 arquata (Monatsber. d. Berlin. Akad. Wissenscb., 16th March, 

 1863) is my Braclyornis spekii (P. Z. S. 21st April, 1863, p. 105); 

 and the former name, having been published about three weeks 

 before the latter, will of course have the priority. The only 

 species congeneric with this singular form is the Crateropus 

 guttatus of Heuglin. I am, &c., 



G. Habtlaub. 



August 15, 1865. 



Sir, — On the 22nd of March I stated to you that 1 had 

 received a male and female of Accipiter gularis from Formosa 

 [antea, p. 236). The bird which I took to be the male is, 1 still 

 think, an undoubted example of that species ; but the specimen 

 which I took for its female proves, on further examination, to 

 be an immature example of Astur trivirgatus, agreeing exactly 

 with an Indian example of similar age. 



In correcting this error, I must apologize to your readers for 

 having allowed it to occur; but, except as regards this spe- 

 cimen, I can confirm the remarks contained in my letter of 

 the 22nd of March. 



This is the first time I recollect to have seen Astur trivirgatus 

 from Formosa. 



I am yours, &c., 



J. H. GURNEY. 



Sib, — Being in Glasgow on the 22nd inst., I made inquiries 

 at the Andersonian Museum concerning the specimen of Ross's 

 Gull {Larus rossi), formerly in Mr. J. Sabine's collection (Ibis, 

 1865, p. 238). I regret to say that the bird is not to be found; 

 and Dr. Scouler informs me that it has not been there since he 

 superintended the museum. He fears that it may have been 

 thrown away in ignorance of its value, if indeed it was included 

 in Mr. Sabine's contribution. No list of that collection appears 

 to have been kept, the information being in the form of labels 

 attached to the birds themselves. 



May I be allowed to add Subprovince 27 to the list of locali- 

 ties for Parus palustris in Mr. More's " Notes " (Ibis, 1865, 



