ORNITHOLOGY - PASSERIN.E. f>3 



proves that their difference iu colour is not dependent upon temperature and 

 other atmospheric influences. The few instances which are known of tin- 

 pan-ing of the one form with the other, no more indicates their specific unity, 

 than the analogous facts in connexion with the Horse and Ass prove that 

 they are of one species. When it is shown that the hybrids resulting from 

 Ihis union are capable of producing a permanent fertile progeny, then, and 

 not till then, will it be necessary to assume as certain the specific unity of the 

 gray and black Crow. 



In the account of the habitats of Conus Pyrrhocorax and C. Graculus, Lin- 

 dermayer appears to have interchanged the names, for, as Count v. Muhle 

 states, the species met with in the valley of Tripolitza is C. Pyrrhocorax, and 

 that occurring on Hymettus and Pentelicou C. Graculus. C. (Garrnlus) 

 melanocephalus, which, according to Temminck, would appear to be common 

 in Greece, has not been met with there cither by Liudermayer or Count v. 

 Miilde, who observed only C. glamhrius ; Drummond also found only tho 

 latter in Corfu, so that Temmiuck's statement must be founded on some 

 error. 



D. Landsborough has inserted some remarks on the habits of a Rook which 

 had been kept confined twelve years in a court-yard, in the ' Annals of Nat. 

 Hist.' (xi, p. 275). Stntthidea cinerea, from New Holland, has been figured by 

 Gould in the ' Birds of Australia,' part 10. 



Tschudi has directed attention to the very peculiar formation of the air- 

 tubes of Ccphalopterus. (Muller's Archiv, 1813, p. 473.) 



:. Several new species have been added to the 

 genus Ampelis. 



Lafresuaye has established two species : Ampelis aureopectits, from Santa 

 Fe de Bogota (Rev. Zool. p. 68; Magas. de Zool. tab. xxxix), and A. arcuata 

 (Rev. p, 98), from Columbia. Both belong to the green species with red 

 beaks, to which division must also be referred A. elegans, from the river Tul- 

 lumayo, instituted by Tschudi (Archiv, p. 385), whilst his A. ciiicta, from the 

 forests of Pangoa, differs in having the beak black. 



Gould has figured his Pardalotus quadragint-us, from Van Diem en's Land, 

 in the ' Birds of Australia,' part 12. From this S. Mi'dler and Schlegel have 

 distinguished as a separate species their P. obsoletus, from Timor. (Verh. 

 Laud-en Volkenk, p. 174). J. Goudot has given a detailed description of 

 Rupicola pcruviana, and also of its nest and eggs. (Rev. Zool. p. 1 ; Mag. do 

 Zool. tab. xxxvii, Egg.) Pipra linearis, Bouap., and P. mtellina, Gould, 

 from Central America, have been figured in the ' Zoology of the Voyage of tho 

 Sulphur,' Birds, pp, 40, 41, pi. 20, 21. 



Pacliycepluda falcata, melon it ra, ami simplex, from Australia, have been 

 newly instituted by Gould. (Ann. Nat. Hist, xii, p. 01.) 



