100 DR. P. L. SCLATER ON THE AMERICAN [Mar. 24, 



Hah. South America, from the La Plata northwards, and through 

 Central America to Guatemala; Jamaica (Osburn) ; St. Domingo 

 (SallS). 



Mus. Brit., P. L. S., &c. 



B. Ch^etura. 



3. Ch^TURA RUTILA. 



Hirundo rutila, Vieill. Nouv. Diet. xiv. p. 528, et Enc. Me'th. p. 534. 



Acanthylis rutila, Sclater, P. Z. S. 1855, p. 135. 



Chcetura rutila, Sclat. et Salv. Ibis, 1860, p. 37, pi. 3. f. 1 (<?), 

 2 ( ? ) ; Sclat. Cat. Am. B. p. 283. 



Hirundo robini, Less. Tr. d'Orn. i. p. 270. 



Chcetura brumieitorques, Lafr. Rev. Zool. 1844, p. 81; Bp. 

 Consp. p. 64. 



Nigricanti'fuliginosa,suhtus dilutior; torque maris undique, rubra, 

 fcemince nulla. 



Long, tota 4"5, alse 5*0, caudse 2-0. 



Hab. Guatemala (Salvin). 



Mus. P. L. S. 



Said to have been procured by M. Robin in Trinidad, and by La- 

 fresnaye described as from New Granada, but more certainly from 

 Guatemala, where Mr. Salvin obtained hia specimens personally. 



4. Chjetura pelasgia. 



Hirunda pelasgia, Linn. S. N. i. p. 345 ; Wils. Am. Orn. v. p. 48, 

 pi. 39. f. 1. 



Chcetura pelasgia, Steph. Gen. Zool. Birds, xiii. p. 16 ; Baird, 

 B. N. Am. p. 144 ; Sclat. Cat. Am. B. p. 282. 



Acanthylis pelasgia, Bp. Consp. p. 64; Cass. 111. B. Cal. i. p. 241. 



Hemiprocne pelasgia, Streubel, Isis, 1848, p. 363. 



Fuliginosa; gutture pallidiore ; supra ceneo tincta, uropygio paula 



dilutior e. 

 Long, tota 4 7, alse 5*0, caudse I'S. 

 Hab. Eastern United States of North America. 



5. CHiETURA VAUXII. 



Cypselus vauxii, Towns. Journ. Acad. Philad, viii. p. 148. 



Acanthylis vauxii, Bp. Compt. Rend, xxxviii. p. 660, Notes De- 

 lattre, p. 90, et Consp. p. 64 ; Cass. 111. B. Cal. i. p. 250. 



Chcetura vauxii, Baird, B. N. Am. p. 145 ; Sclat. Cat. Am. B. 

 p. 282. 



Chcetura ?, Sclat. et Salv. Ibis, 1860, p. 37. 



Fuliginosa ; dorsa et capite ceneo tinctis ; uropygio pallidiore; 



subtus gutture albo, ventre obscure fuliginosa, gulam versus 



sensim dilutiare. 

 Long, tota 4'3, alse 4'7, caudae 1*5. 



Hab. Western North America, from British Columbia south 

 through Mexico to Guatemala. 

 Mus. P. L. S. 



