1873.] 57 [Ridgway. 



Circus gouldi Bonap. (sub 371.) 



1673, juv. Marquesas. Lafr. Coll., No. 668. 



Circus poliopterus Tsch. (372.) 



1697, tf ad. Paraguay. Lafr. Coll., No. 692. ("C. Ustrionicus 

 Quoy.") 



1698, ? ad. Paraguay. Lafr. Coll., No. 693. ("C. histrionicus 

 Quoy.") 



(Group Nisi.) 



Nisus (Astur) palumbarius. 



a. var. palumbarius Linn. (268.) 

 1569, ? ad. Europe. Lafr. Coll., No. 564. 



1570, V " " " " 



" 565. 



1571, <S juv. « " 



" 566. 



1572, ? " " " " 



" 567. 



b. var. atricapillus Wils. (269.) 





ad. Locality unknown. 





ef juv. " " 





14, — ad. New England. 





JUV. 



Nisus (Astur) melanoleucus (Smith). (270.) 



1567, ? ad. Port Natal. Lafr. Coll., No. 562. 



1568, ? juv. " " " « 563. 



Nisus (Astur) novsehollandise Gmel. (276.) 



1563, c5" ad. Australia. Lafr. Coll., No. 568. 



1565, c? " " " " " 560. 



" " Smithsonian Institution (No. 13831). 



Nisus (Astur) rayi Vig. and Horsf. (277.) 



1564, ¥ ad. Australia. Lafr. Coll., No. 559. 



1566, ? ad. " " " « 561. 



