356 Mr. Swainson on several new groups in Ornithology. 



Bill moderate, slender, compressed, slightly curved, entire. 

 fVings short, rounded; first quill short, the third, fourth, and 

 fifth nearly equal and longest. Tail graduated, soft. Legs 

 slender; tarsi elevated, anterior scales few, lateral scales ob- 

 solete, posterior scales numerous, small ; hind toe shorter 

 than the middle, the claw curved. 



Sub-family Sclerurina. 

 SCLERURUS. 



Rostrum sub-elongatum vel longiusculum, emarginatum^ obtU' 



sum ; culmi7ie versus apicem leviter arcuato. 

 Ala mediocres, rotundafa, rcmigibus 1"^' et 1^^ gradatis^ S'*"', 4'« 



et 5'"^ wqualihus, lo7igisshnis. 

 Cauda lata, rigida, rotundata. 

 Pedes gracilesy breves, digito exler tore prima phalange tenus medio 



conjuncto, interiore ad basin connexo ; halluce gracilis sub- 



curvatoy leviter emarginato. 



Bill rather lengthened, notched, obtuse : culmen elevated, and 

 slightly curved towards the tip. Wings moderate, rounded ; 

 the first and second quill graduated ; the third, fourth, and 

 fifth equal and longest. Tail broad, rigid, graduated. Legs 

 short, slender ; outer toe connected to the middle toe as far as 

 the first joint, inner toe united at the base ; claw of hind toe 

 slender, slightly curved and notched. 



On these two novel and interesting forms, I shall have occa- 

 sion to ofi"er a few observations while describing the valuable 

 acquisitions made by Dr. LangsdorfF in the interior of Brazil. 



Sub-family ? 



* OXYGLOSSUS. 



Rostrum mediocre, gracile, attenuatum, rectum, emarginatum. 

 Lingua jaculatoria ? apice simplici, acuto. 



Alee mediocres, altenualce : rcmigibus Imd et 4^^ cequalibus, 2da 

 el S'lJ cequalibus, longissimis. 



