2. Genus HYDROPSALTS, Wagler. 



1. Hydropsalis torquatus, (Gm.) Tcmm. PL col. 157, 158. 



Caprimulgus torquatus, Gmelin. ^i/at. Nat. vol. i. pt. ii. p. 1032. 

 Caprimulgus brasiliensis, Bn'sson. Orn. ii. p. 481. 

 Caprimulgus furcifer, Viein. JVouv. Diet. x. p. 242. 

 " Caprimulgus psalurus, Azara." Tcmm. PL col. iv. p. (27 liv.) 

 " Caprimulgus fissicaudus, Merrem." Gray. Cat. Brit. Mus. 



Fissiros. p. 10. 

 ''Caprimulgus grandis, Linn. Gm." Lichtcnstein. Verzeichniss, 



p. 58. 

 Hydropsalis Azara3, ^YagJer. Ms, 1832, p. 1222. 

 Psalurus macropterus, Sicains. Cab. Cy. Birds ii. p. 339. 



1, 2. Adult males, South America, from the Rivoli collection. 



3, 4. Adult females, Brazil, from the same. 



2. Hydropsalis limbatus, Cassin. Proc. Acad. Philada. Oct. 1849. 



Hydropsalis creagra, Bonaj). Consp. Av. p. 58, (1850.) ? 



1. Adult male, South America, from the Rivoli collection. 



2. Younger male. South America, from the same. 



3. Female or young male, South America. 



3. Hydropsalis segmentatus, Cassin. Proc. Acad. Philada. Oct. 



1849. 



1. Male, Bogota, New Grenada, from the Rivoli collection. 



2. Female, Bogota, New Grenada, from the same. 

 8. Male, South America. 



4. Hydropsalis lyra, Bonap. Consp. Av. p. 59, (1850.) 



" Hydropsalis lyra, Gould." Bonoj). ut sup. 



1. Adult male, Bogota. 



2. Young male? South America. 



5. Hydropsalis climacocercus, (Tsch.) Fauna Peru. Aves, pi. 6. 



%! 

 Caprimu.lgus climacocercus, Tschudi. Wicgm. ArcJiiv. 1844, p. 269. 



1. Female, Guiana. 



3. Genus STENOPSIS. Cassin. 

 1. Stenopsis cayennensis, (Gm.) Buff. PI. Enl. 760. 



Caprimulgus cayennensis, Gmelin. Si/st. Nat. i. pt. ii. p. 1031. 

 Caprimulgus leueurus, Vieill. Nbuv. Diet. x. p. 246. 

 Caprimulgus cayanus. Lath. Index ii. p. 587. 

 Caprimulgus leopetes, Jard. and Sel. 111. Orn. ii. pi. 87. 

 Caprimulgus odontop teron, Z/esso7i. Rev.Zool. 1839, p. 105. Comp. 



aux CEuv. Buff. XX. p. 260. 

 Caprimulgus enicurus, Vieill. JVouv. Did. x. p. 243 ? 

 Hydropsalis trifurcatus, A^atf. Tschudi, Fauna Per. Orn. p. 129? 

 1, 2. Adult males, Cayenne, from the Rivoli collection. 



3. Female, South America, from the same. 



4. Male, South America. Presented by C. Herring, M. D. 



