8. Cypselus ambrosiacus, (Gm.) Temm. PI. Col, 460, fig. 2. 



Hirundo ambrosiaca, Gm. Syst. Nat. i. p. 1021. 

 " Hirundo araericana, Lath, nee Wils. fide Temm." Streubel, Isis, 

 1848, p. 356. 



1, 2. Adults, Fazogloa, Eastern Africa, from the Rivoli col- 

 lection. 



9. Cypselus balassiensis. Gray. Griff. Cuv. vii. p. 60, (1829.) 



Cypselus palraarura, Gray. 111. Ind. Zool. pi. 35 fig. 1, (1832.) 



1. Adult, India, from Capt. Boys' collection. 



10. Cypselus parvus, Licht. Verz. p. 58 ? 



1. Adult, Western Africa, from Mr. Cassin's collection. 



2. Adult, Congo river. Presented by A. A. Henderson, 



M. D., U. S. Navy. 



3. Younger? Madagascar, from the Rivoli collection. 



11; Cypselus australis, Gould. B. of Ami. ii. pi. 11. 



Cypselus vittatus, Jard. and Selhy. 111. Orn. n. s. pi. 39 ? 

 Hirundo pacifica. Lath, Ind. Orn. Supp. p. 58 ? 



1. Adult male, Australia, from Mr. Gould's collection. 



2. Adult female, Australia, from the same. 



12. Cypselus cayennensis, (Gm.) Biiff. PL Enl. 725, fig. 2. 

 Hirundo cayennensis, Gmi. Sysf. Nat. i. p. 1024. 



1. Adult, Brazil, from the Bivoli collection. 



2. Adult, Brazil. 



13. Cypselus squamatus, Cassin. Proc. Acad. Philada. June, 1853. 



1. Adult, Guiana. Presented by H. G. Dalton, M. D. 



2. Adult, Cayenne. 



3. Younger, South America. 



2. Genus ACANTHYLIS, Bole. Isis, 182G, p. 971. 



1. AcANTHYLTS PELASGIA, (Linn.) WUson, Am. Orn. pi. 39, fig. 1. 



Hirundo pelasgia, Linn. Syst. Nat. i. p. 345. 

 Hirundo cerdo, Bartram. Trav. p. 292, (1791.) 

 ** Cypselus acutus, Temm. Mus. Lugd." Bonap. Cons. Av. p. 64, 

 (PI. col. vi. p. 78.) 



1. Adult male, Philadelphia. Presented by J. K. Town" 



send, M. D. 



2. Adult female, Carlisle, Penna. Presented by Prof. S. F. 



Baird. 



3. Adult, North America, from the Rivoli collection. 



2. AcANTiiYLTS Vauxii, (Townsend.) 



Cypselus Vauxii, Toicnsend. Journ. Acad. Nat. Sci, Philada, 

 viii. p. 148, (1839.) 

 1. Adult, Oregon, from Dr. Townsend's collection. 



