174 Mr. Swainson on several new groups in Ornithology/, 



short, rather strong ; the outer toe connected to the middle 



toe at the base ; anterior scales of the tarsi divided, lateral 



scales entire. 

 Type. P. cyanea. 

 P. Cyanea, sublus pallide fulva ; fronte, capitis lateribus, auri- 



busque nigris y occipite urupygiuque azureis. 

 Habitat in Brasilia. 



One specimen of this beautiful bird occurs in a fine collection, 

 recently sent to me from the interior of Brazil by Dr. LaiigsdorlF. 

 This enthusiastic Naturalist is now traversing the inland provinces 

 of that vast empire, by command of the Emperor of Russia. He 

 has done me the honour to request [ will publish his Ornithological 

 discoveries ; and the portion he has already sent for that purpose, 

 enables me to say they are very important. 



PACHYCEPHALA. 



Caput magnum. 



Rostrum breve, forte, crassum, compixssum, fortitcr emargi- 



natum ; gonyde asccndente ; culmine arcuato ; naribus plu- 



mulis setaceis obtcclis ; riclu barbato. 

 Ala mediocrcs, sub-rotundatw, remige 1""^ brevissima, 2''*^ ct 3''« 



gradatis, 4'", 5'", et 6^'' fere aqualibus, longissimis, 7"^ et 3'*^ 



aqualibus. 

 Cauda longiuscula, ttqualis. 

 Pedes subfortes, mediocres ; tarsorum squamis latcralibus intcgris. 



Head large. Bill short, strong, thick, compressed, strongly 

 notched; gonyr, ascending ; culmen arched ; nostrils concealed 

 by small setaceous feathers ; mouth bearded. Wings mode- 

 rate, slightly rounded ; first quill generally very short, second 

 and third graduated, fourth, fifth, and sixth, nearly equal and 

 longest; seventh and third equal. Tail rather lengthened, 

 equal. Feet strong, moderate, lateral scales of the tarsi entire. 



Type. P.fusca. Vig. and Ilorsf. 



