29. CAMPi'LOEHYXCHUS. 185 



Range. From the southern border of the United States and Lower 

 California, throughout Central America and South America, as far as 

 Brazil and Bolivia. 



Key to the Sj>ecies. 



a. Centre tail-feathers without pale cross bars ; 



back not barred or streaked with white. 

 a'. Outer tail-feathers with a broad band of 

 white across them ; back and rump rufous- 

 brown ; head and numtle black, with a 

 broad white eyebrow ; under surface 

 white. 

 a". Quills edg'ed with rufous. 



«'". Mantle-feathers edg-ed with rufous . . griseus, p. 186. 



b"'. Mautle uniform minoi-, p. 187. 



b" . Quills uniform dull brown externallv, like 



the back ' bicolor, p. 187. 



b'. With no white bands on any of the tail- 

 feathers, 

 c". Under surface white, imspotted ; head 

 white all round; back, wings, and tail 



hrowTi albibruiineus, p. 188. 



d". Under surface imiform pale fulvous- 

 brown, the under tail-coverts spotted 



with black unicolor, p. 190. 



e". Under surface spotted; upper surface 

 nearly uniform, the feathers edged with 

 ashy. 



c'". Throat white, not spotted variegatits, p. 188. 



d'". Throat spotted with blackish hypostictus, p. 189. 



b. Centre tail-feathers with light cross bars; back 



uniform chestnut : head black capistrafiis ad., p. 191. 



c. Centre tail-feathers with light cross markino-s 



or bars ; back streaked or barred with white. 



/". Chin and throat uniform, not spotted 



with black. 



e'". Under surface uniform, not spotted or 



barred with black. 



a*. Head black; back chestnut, streaked 



and spotted -with white ; land neck 



imiform chestnut caj}istratusjuy.,p. 191. 



b*. Head dark chestnut, as well as the 



hind neck /iiimilis, p. 192. 



/'". Under surface spotted with black. 

 c*. Head blackish brown, slightly mot- 

 tled with ashy-brown margins to 

 the feathers ; above the ear-coverts 



a streak of black jocosm, p. 19.3. 



<?'. Head chestnut-bro-wa, quite uniform ; 

 above the ear-coverts a streak of 

 chestnut gtdaris, p. 194. 



the present volume, but it is said to be closely allied to Campylorhynchus. A 

 translation of the original description of 0. cincreus, Pelz., is in the Appendix 

 {vide infra). 



