406 Mr. P. L. Sclater on the Distribution 



but of different plumage. This last will probably have been the 

 immature Bambusicola sonorivox. 

 Amoy, 17 June, 1866. 



*^* The following is an extract from a letter, dated "■4th May, 

 1866/' from Mr. Swinhoe, which unfortunately did not reach us 

 until after the publication of our last Number. " If you have not 

 yet printed my paper on recent novelities from Formosa, I must 

 ask you to correct an error for me. I have now a goodly series of 

 Green Pigeons, and find them to be as variable in colour, form, 

 and size of bill, and other proportions, as Mr. Darwin could desire. 

 I think I was wrong in making three species. The skins of the 

 first Sphenocercus sororius that I received were so badly stufi^ed 

 that I could not then reconcile them with what I considered the 

 third form, my Treron cheer ohoatis [antea, p. 313]. Now, how- 

 ever, after examining a large series, I consider the two last to be 

 identical, and I should be obliged by your uniting them under 

 the first name, Sphenocercus sororius. Treron formoscB is a good 

 species; but, with the exception of some slight differences in the 

 tail, I think there is scarcely enough to justify the two forms 

 being referred to distinct genera, though I believe I am right in 

 referring sororius to Sphenocercus, and formosa to Treron." — Ed. 



XXXII. — Note on the Distribution of the Species of Chasmo- 



rhynchus. By P. L. Sclater, M.A., Ph.D., F.R.S. 

 In Mr. Salvin's excellent article upon the wonderful Bell-bird 

 of Costa Rica {Chasmorhynckus tricarunculatus^ and its allies, 

 pubhshed in last year's 'Ibis' (1865, p. 90), he follows M. 

 Temminck and myself* in giving "Brazil" as the locality 

 of C. variegatus. I have lately discovered that this locality, 

 vague as it is, is most probably altogether incorrect. During 

 my visit to Copenhagen last year. Professor Reinhardt was kind 

 enough to show me an example of this species in the Royal 

 Museum, obtained by a correspondent of that Institution, M. 

 Schibby, near Valencia, in Venezuela. In the * Museum 

 Heineauum' (vol. ii. p. 108) Messrs. Cabanis and Heine give 

 Puerto Cabello, on the coast of the same republic, as the 

 * Cat. Am. Birds, p. 258. 



