304 PROCEEDINGS OP THE ACADEMY OF 



bands on the whole of the outer web. The remaining feathers, except the 

 central ones, are banded only on the outer webs ; sometimes not then, when 

 the whole feather is black, except at the tip. In the other species, C. affinis, 

 all the feathers (except the central) are banded uniformly with white from 

 the base, there being from six to eight on each web, which alternate with 

 each other, the bands being about equal to their black interspaces. The streaks 

 on the back are more distinctly denned than in brunneicapillus, and the head 

 above is of a clear, reddish chocolate, instead of the darker brown of the latter 

 species.* 



17. Poljoptila melanura, Lawrence. The single specimen of this species 

 sent in by Mr. Xantus has the tail feathers more broadly edged and tipped 

 with white, and the gray of the back lighter and clearer than in specimens in 

 the Smithsonian collection from the Gila region. 



18. Pakoides flaviceps, Baird. Specimens are much smaller than those 

 from the Gila and Rio Grande. The yellow on the head also is brighter. In 

 some there is a tinge of red in the yellow of the crown. "Wing of male l - 90 

 inches. 



19. Carpodacus frontalis, Gray. Very similar to northern specimens, but 

 smaller. The resemblance to some Rocky Mountain skins in the Smithsonian 

 collection is very close. 



-20. Chondestes grammaca, Bonap. 



"21. Zonotrichea leucophrys, Swains. It is an interesting fact that this 

 species should be found at the Cape, instead of gambelii. It is to be borne in 

 mind that both are found along the Rocky Mountains as far south as El Paso, 

 and that Z. leucophrys has not yet been detected in Upper California. 



22. Calajiospiza bicolor, Bonap. This species has not yet been detected in 

 Upper California. 



. 23. Guiraca melanocephala, Swainson. 



24. Cyanospiza versicolor, Baird. The female of this species is very 

 similar to those of C. cyanea and amosna. From the latter it is distinguishable 

 by the absence of traces of two white bands on the wings, and from both by 

 the legs being black instead of dark brown. The bill appears to be more 

 curved, and the legs larger than in the other species. 



25. Pyrrhuloxia sinuata, Bonap. Smaller than Texan specimens. 



* The following account of common and specific characters may serve to define the 

 species better. 



Head above uniform brown ; back and scapulars grayish brown, each feather with a 

 central white streak bordered externally by black ; upper tail coverts and upper surface 

 of inner tail feathers, obscurely marked transversely with grayish and blackish, other tail 

 feathers black, barred with white. A white streak over the eye and along side of ^neck^ 

 Body beneath white, with rounded spots of black; strongly marked on the under tail coverts^ 



C brunneicapillus. Head above dark brown ; black spots on the throat and breast, 

 large, occupying the whole breadth of the end of the feather, the spots on the remaining 

 under parts abruptly'much smaller and less numerous. Crissum lower belly and flanks 

 strongly tinged with pale rufous. The black tail feathers, except the outer, scarcely 

 barred with white, except as a subterminal bar. 



C. affinis. Head above dull light chocolate brown ; black spots beneath of much the 

 same size and strongly marked on nearly every feather, and but little if any more con- 

 spicuous on the jugulum than elsewhere; on the jugulum they are about opposite the 

 middle of the feather (not at ihe tip) and do not cross both webs ; very little trace of 

 rufous any where beneath. All the black tail feathers are crossed wkh white bands on 

 both webs throughout their whole extent. Length 7 - 50 ; wing 3 - 50 ; tail 3.25 ; bill above 

 -SO; tarsus 1-00. 



[Nov. 



