APPENDIX B 



and shortening of the beak, which becomes wholly that of a greenfinch. As for 

 the wings and tail, they undergo no change, these parts being already correspond- 

 ingly coloured in both the Chrysoiiiitris auibigua and the Chloris sinica. 



From these facts, based on the comparison of a series of fifty specimens, it 

 might be concluded that the Chloris sinica and the Chrysomitris ambigiia con- 

 stitute in reality only one and the same species, very variable, of which the old 

 birds develop a green livery and black hood. But then how comes it that this 

 black hood and this green livery have never as yet been observ'ed in the many 

 specimens of the Chloris sinica which naturalists have had under their inspection 

 from the time of Linnaeus, and which figure in the large museums of Europe ? 

 It seems more reasonable to me to regard the Chrysomitris ambigua as a Yimnan 

 species, the area of whose habitat is contiguous on the northern side with that 

 of the Chloris sinica, and to suppose that on the confines of their respective 

 regions the breeds, already closely allied, are subject to frequent crossing. 



As I have already remarked, the two species Chloris and Chrysomitris are 

 extremely near akin ; and it is an error, in my opinion, to arrange them as in 

 the catalogue of the British Museum in two different tribes of the family of the 

 FringillidcB. Already the Chrysomitris spinoides (Mg.) of the Himalayas and 

 Setchuen exhibits the plumage of a Tarin with the beak of a greenfinch. 



Arboricol.^ Henrici, n. sp. — A. Torqueola affinis, sed mento rufo, gula nigro 

 maculata, tergo, caudae tecticibus rectricibusque dorsi modo transversim radiatis, 

 abdominis lateribus castaneo colore carentibus distincta. 



Entire length of bird, 10.03 to 12.59 in.; of wing, 5.11 to 5.90 in. ; of tail, 

 2.16 to 2.55 in.; of beak, .78 in. ; of tarsus, 1.49 in. 



Hab. Tonkin and prov. Kuang-tri (Annam). 



Crest for most part black ; front and lower jaw fawn ; neck speckled black 

 on tawny : shoulder streaked transversely and regularly with black on olive, 

 prolonged to the tail coverts and even as far as the rectrices, and not broken 

 behind by triangular patches or bands as in the Arboricola torqueola ; wings 

 presenting same markings as in the latter species ; breast brownish -red, more 

 uniform than the Arboricola torqneola without the small white flecks ; thighs 

 verging towards olive -brown, with feathers marked by large terminal black patch 

 preceded by a white one, but not speckled with chestnut ; beak brown ; feet red. 



The foregoing description is taken from two specimens from different sources : 

 one presented to the Museum by Prince Henry of Orleans, and obtained by 

 him at Maison (Tonkin) on the 20th of February 1892, in the course of his former 

 travel in Indo-China ; the other acquired by Father Renauld, and coming 

 from the same province as the Carpococcyx, that is to say, the province 

 of Kuang-tri (Annam). The first of these birds is indicated as a female, and 

 is somewhat smaller in size than the other. Its beak is a little deformed, and 

 the plumage slightly altered, so that, while detecting different characteristics from 

 those of the Arboricola torqiteola, I was satisfied to designate it in the collec- 

 tions of the Museum under the manuscript name of Arboricola Henrici, 

 and postponed giving a description of the species, which immediately struck me 

 as a new one, until I should have another specimen under my scrutiny. The 

 arrival of this second example, moreover, admits of a considerable extension 

 towards the south of the habitat area of the species, which is evidently to be 

 found throughout the entire mountain and forest region that separates Annam 

 from Laos. 



In addition to the above species there are many others in Yiinnan on which 

 I should have wished to say a few words, but I hof)e to be able to investigate 

 them in an ulterior work. 



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