Biblidgrapftical Notices. SfS 



Milvulus savana is the Muscicapa tyrannus, Lin., and should bear 

 the latter specific name. 



I P. 43. The Muscicapa flabellifera of Gm. and Lath, is not the 

 Rhipidura flabellifera of Vigors and Horsfield, which last is the R. 

 albiscapa of Gould. 



P. 44. The earliest synonym of Liothrix fur cat a is Tanagra si- 

 nensis, Gm. 



P. 46. Mr. Gray is fully justified in removing the name Ampelis 

 from the American genus which has borne it of late years, and re- 

 storing it to the Waxen Chatterer of Europe. The latter bird is 

 clearly the type of the genus Ampelis of Linnaeus, who took this 

 name from the old authors, and Vieillot ought therefore to have re- 

 tained this title to the Waxen Chatterer, instead of the new one 

 Bombycilla. We may the better reconcile ourselves to this change 

 as .it happens fortunately that the American Chatterers are already 

 provided with a name by Brisson, who in 1760 defined for them the 

 genus Cotinga. 



I have seen reason to reverse the opinion I formerly expressed re- 

 specting the genera Tersa, Vieill., and Chasmorhynchus, Tern., each 

 of which claims to be the lineal descendant of the old genus Proc- 

 nias, 111., and consequently to bear its name. The question is, what 

 type did Illiger adopt for his genus ? Now he cites three species of 

 Procnias, as follows : — " Ampelis variegata, carunculata ? Lin., Gmel., 

 Hirundo viridis, Tern. Catalog." The first two belong to Chasmo- 

 rhynchus, and the last to Tersa ; therefore, if we assume the first on 

 the list to be the type of Illiger's genus, the title of Procnias will de- 

 volve upon Chasmorhynchus. But in determining an author's type, 

 other points must be considered besides the order in which he enu- 

 merates his species. If we suppose with Temminck, that Illiger's 

 mark of interrogation refers to both the first and second species on 

 his list, we must assume the third to be the one about which he had 

 no doubt, and from which the characters of his genus were taken. 

 That such was the case, will be evident from the characters which 

 he has assigned to the genus Procnias, among which we find " Ros- 

 trum brevius ; nares basales, membrana plumis frontalibus aut 

 setis obsita, clausse ; alse mediocres." Now all these characters 

 strictly apply to Tersa, Vieill., but do not suit Chasmorhynchus, Tem. 

 Moreover, the name Procnias clearly alludes to the swallow-like 

 form of Tersa (which induced Temminck at that time to call it 

 Hirundo viridis), which cannot be asserted of Chasmorhynchus. I 

 think, therefore, that we ought to follow Temminck in retaining the 

 name Chasmorhynchus for the one genus, and conferring the name 

 Procnias, 111. (restr.), on the Tersa of Vieillot. 



The type of Cotinga does not require a new specific name. The 

 blue-banded species or variety, PL Enl. 188, was called A. cincta by 

 Kuhl in 1820, and the plain-breasted one, PI. Enl. 186, is the A. 

 ccerulea of Vieillot, 1824. 



P. 47. The Chibia barbata, Gray, is the Corvus hottentottus, Lin., 

 and the Criniger splendens of Tickell, 1833. 



P. 48. For Telophorus read Telophonus (from rrjXe and (pwvrj). 



