Psittacidce : — G('nus Platycercus. 527 



species, ad varied in plumag/sj but generally speaking are en- 

 dowed wi 1 characters tt»at separate them into groups decidedly 

 distinct frcn those of the Old World aiid America. A few of 

 these form are found partially tp extend over the Islands of the 

 South Ses : and these in ccfij unction with other similarly cir- 

 cumstancel groups miy be noticed as connecting the Zoology of 

 the newl) explored cr^iiinent of New Holland with that of the 

 antient cotrinent Ttie arrival in this country of a hitherto rare 

 species, wlich is the representative in the South Seas of a form 

 verygenenily diffusfd throughout New Holland, and of which 

 several speiimens ha'e lately come under my observation, affords 

 me an oppo-tunity of characterizing one of the most extensive of 

 these group;, and at the same time of adding representations of 

 a few of the rarest species belonging io it. 



'Genus Pi.atycercus. 



Ros^n«w\'^viuscnlum, mandibula superiore rotuudata, dilata, 

 inferiore brej? Pfol unde emarginata, apice quadrate, myxa con- 

 vexa, glabr, inte^pa: naribus rotundis, in ceromate angusto 

 medio emargjato, p ositis. 



Aloe rotuHatae ; remigum,* prima excepta, pogonio externo 

 abrupte proj^ medi um emarginato ; prima 2da breviore, b^^ prae- 

 cipue Jequali secuiida et tertia longissimis. 



Cawrfa lata depriBSsa, subro tun data, gradata; rectricibus apice 

 subrotundis. 



Pedes, taris ele vatis ; acrotarsiis reticulatis ; digitis gracilibus, 

 elongatis ; unuibus longis, parum falcatis. 



Typus geneicusj Ps. Pennaniiiy Lath. 



The interes>ng group that forms the present division of the 

 Psittacidce, is t first sight immediately recognized as distinct 

 from all those \viich are included under the general name of lon<r~ 



I. o C3 



* The term renif 'n its original signification was masculine, and as such I 

 applied that gendfkothe term throughout the descriptions of the groups of 

 Falconidm in the la Number of this Journal. I find however that it is usually 

 employed as a femi'ine noun when applied to Ornithology, and for the sake of 

 unifnrmity I shall a"iere fo this form in future. 



2 N 2 



