HIRUNDO. 



303 



gmith- Collec- 



•floUn' tor's 



»o. No 



I 



«,048 



Sex 

 and 

 Age. 



342 



Locality. 



Brazil. 

 Bab la. 



When 

 Collected. 



Received from 



Acad. Nat. Sciences. 

 Cab. Lawrence. 



Collected by 



Callichelidon, Bryant. 



Cdllichelidon, Bryant, MSS. (Type H. cyaneoviridis, Bryant.) 



Nostrils lateral ; overhung by membrane. Tarsi lengthened ; equal to middle 

 toe and more than half the claw ; entirely bare of feathers. Basal joint of 

 middle toe entirely adherent externally, for more than half internally. Lateral 

 toes equal, or outer a little the longer. Tail deeply forked ; the feathers some- 

 vhat attenuated ; as long as the wings. 



Above green, beneath white. 



The tj'pe of this new subgenus, perhaps entitled to rank as a full 

 genus, has tiie same soft velvety condition of the dorsal plumage, 

 witiiout metallic lustre, as in thalassina. The tail is deeply forked 

 and the lateral feathers narrow and tapering from the base. The 

 second species, placed here provisionally on account of the long 

 bare tarsi, exhibi'.d on the back a strong metallic lustre, and the tail 

 is le.ss deeply forked. 



The legs are longer and more naked than in other American 

 Swallows — in this respect approaching Cheramceca, of Cab. (C. leii- 

 costei'na, of Australia). Here, however, the outer toe is said to be 

 shorter than inner ; the claws very large, the outer toe but little 

 adherent at base. 



' -'t 'r Si/nop.iis of Species. 



Above soft velvety grass green, changing to blue on mmp. 

 Beneath pure white. Feathers of chin and throat white 

 to base cyaneoviridis. 



Above metallic golden green. Beneath white ; the chin dusky. 

 Feathers of chin and throat plumbeous at base ; of breast 

 with large greenish spots, somewhat concealed . . euchrysea. 



Rinindo cyaneoTiridia. 



Hirundo cyaneoviridis, Bryant, Pr. Boat. N. H. Soc. VII, 1859, 111 

 (Nassau, N. P., Bahamas; very abundant). — Callichelidon cyaneo- 

 viridis, Bryant, MSS. 



flfjfc. Island of New Providence, Bahamas. 



(No. 11,1)46.) Upper parts soft velvety green, with a slight occasional 

 gleam of golden, passing on the wings iirto greenish-blue, and on ti^j rump 



K 



