286 Analyses of Booh. [AtEiL, 



Linnaeus for a genus of plants ; and Mr. Vigors, in his excellent 

 paper on the Falconidse, in the Zoological Journal, has lately, 

 not knowing that Dr. Spix had separated it, formed it into a 

 genus under the name of Harpagiis, which must, therefore, be 

 retained. He describes six species, two of them figured by Tem- 

 minck, and he considers what the latter called the young of 

 F. bidentatus (t. 228), as adistinct species, under the name of ^/6/- 

 veriter, which must, therefore, be H. albiventer ; he adds to this 

 genus the Falcons, F. Sparverius {Bujf. t. 465), F. Dominicen- 

 sis (Buff. t. 444), and F. aurantius of Lafliam ; but these birds, 

 having reticulated legs, do not belong to Mr. Vigors' genus, but 

 are true falcons. Dr. Spix has described the male and female 

 of the first of these birds ; and he says, the second is not the 

 female of the first, as is generally supposed. 



Unfortunately the genera are not very accurately defined, nor 

 is the character of them or of the species expressed according 

 to the usual rules of natural history, and the synonima are 

 limited. 



In the second family of Striges, there is only one genus, con- 

 taining six species, five of which appear to be hitherto unde- 

 scribed. 



The third family or Psiftaci, are divided into genera which 

 appear to be analogous to the subgenera of Kuhl. They are, 



1. Arara^ the Aia of authors, containing eight species. 



2. Aratinga characterized thus; Macrurus, minor modax ; 

 orbitis nudiusculis ; genis angustis, vix velraro nudis; rostroden- 

 tato, graciliore; cauda longiuscula cuneata ; rectricibus interme- 

 diis longioribus. This genus contains several of the Failtacara of 

 Mr. Vigors, but is not confined within the same limits as that 

 genus ; it contains 18 species, amongst which are two that Mr. 

 Vigors has lately described as species of Psittacara. Dr. Spix 

 figures, t. 11, a species of parrot, which he has dedicated to the 

 King of Bavaria under the new generic name of Aiiodorhi/nchus, 

 but he has not given the characters of it. The bird is peculiar, 

 as the name partly implies, for the upper mandible is very 

 long and much arched, and destitute of any notch in its lower 

 edge. In this family there are also described four love-parrots, 

 under the generic name of Psittaculus, and 17 species of true 

 parrots. 



The family of CiicuU, which Dr. Spix describes in the fol- 

 lowing manner, may be given as a specimen of the usual way in 

 which these groups are characterized. 



Insectivori, taciturni, non scansorii, sed sedentarii. Strigum 

 modo breviterque volantes ; digitis frequenter gracilhmis, 2 an- 

 ticis, 2 posticis ; rostro arcuato ; colla, alis, et tarsis abbreviatis. 



In the genus T/ooo«, there are described nine species, some of 

 which are exceedingly beautiful, though not so brilliant as those 

 of the southern part of the Old World. Dr. Spix also describes 



