490 



PROCEEDINGS OP THE ACADEMY OF 



rusty on a blackish ground ; but the bars on the tail number from 

 5 to 6, instead of 2 to 4. 



The following measurements are from specimens in the collec- 

 tion of Mr. Osbert Salvin: 



Porto Oabello 

 Venezuela . 

 Bogota 



2 



1.25 



i'.is 



5. MlCRASTUR RUFICOLLIS. 



[Ritfous phase.] 



Sparvius rujicollis, Vieill., Nouv. Diet. X, 1817, 322 (adult/) ; Enc. Metk. 



Ill, 1263. Pucheran, Rev. Zool. 1850, 91. 



Mierastur rujicollis, Strickl., Orn. Syn. I, 1855, 122. Scl. and Salv., 



P. Z. S. 1869, 366 ; Norn. Neotrop. 1863, 120. Gray, Hand List, 



I, 1860, 366. Ridgw., Pr. Boston Soc. N. H. XVI, May, 1873, 



78 (part). Sharpe, Cat. Ace. Br. Mus. 1874, 76 (part). 

 Faleo xanthothorax, Temm., PI. Col. I, 92, 1824 (adult). Spix, Av. Bras. 



I. 1824, 19. 



Nisus xanthothorax, Less., Man. Orn. I, 96; Tr. Orn. 58. Cuv., 



Reg. An. ed. 2, 334. 



Accipiter xanthothorax, Gray, List B, Brit. Mus. 69. Cassin, Proc. 



Ac. Nat. Sc. Phila. 1848, 88. 



Glimaeocereus xantlwtliorax, Burm., Syst. Ueb. II, 1856, p. 122. 



Mierastur xanthothorax, Gray, Gen. B. fol. sp. 2. Bonap., Consp. 



I, 1850, 30. Pelz., Orn. Nov. 1865, 12; Orn. Bras. I, 1868, 399. 



Herpetotheres xantJiothorax, Kaup, in Contr. Orn. 1850, 71. 

 '! F<dco leucauchen, Temm., PI. Col. 1823, pi. 36 (young?) Pucheran, 



Rev. Zool. 1852, 91. 



Astur leucauchen. Less., Man. Orn. I, 92. Cuv., Reg. An. ed. 2, 



332, 



Ni&us leucauchen, Less., Tr. Orn. 60; Rev. Zool. 1850, 91 (fide 



Pelzeln). 



