34^ Mr. Swainson on several new groups in Ornithology/, 



CRITHAGRA. 



Kostritm breve, sub-conicum, crassum, integrum ; culmine arcu- 



ato ; tomio curvato. 

 Ala sub-elongata J remigibus l^', 1^^, S^', ct 4'a aqualibus, 



longissii/iis. 

 Cauda mediocris, sub-furcata. 



Bill short, sub-conic, thick, entire ; culnien arched ; commissure 

 curved. Wings lengthened ; the first, second, third, and fourth 

 quills equal and longest. Tail moderate, slightly forked. 



Types. Lox. sulphurata, Jlavive7itris. Lath. 



Africa only ? In the valuable collections of my friend Mr. 

 Burchell, are numerous examples of this form. 



SPERMOPHILA. 



Rostrum breve, crassissimum, integrum ; culmine arcuato ; tomio 



cunato. 

 Ala breves, rotundata ; remigibus lm<^ et 7'"^' aqualibus, lon- 



gissimis. 

 Cauda mediocris, rotundata. 



Bill short, very thick, entire ; culmen arched ; commissure cur- 

 ved. Wings short, rounded ; the first and seventh quills equal 

 and longest. Tail moderate, rounded. 



Types. Pyrrhulce falcirostris, cinereola. Temm., PI. col. p. 11. 



This is a South American group, and does not appear to ex- 

 tend further North than Mexico. Between the three last genera 

 a general similarity prevails in the shape of the bill, but in other 

 respects they are very different. 



tAMMODRAMUS. 



Rostrum mediocre, validum, conicum, leviter cmarginafum : tomio 



sinuate, basi angulato. 

 Ala breves rotundata ; remigibus \nid et b^^ aqualibus ,' 2^', 3''«', 



et 4'-^ aqualibus, longissimis. 



