iSSS.] Berlepsch, Desci-ifiiotis of New Neotropical Birds. 459 



intimately any of the known species of Synallaxis. Mr. Sclater, 

 who has examined one of my specimens, agrees with me that it 

 is quite a new bird. One of my two specimens lias longer wings 

 and tail than the other. The larger-sized bird seems to be the 

 younger one, as it shows an unmistakable character of immaturity 

 in its fluffy plumage. The smaller-sized specimen, however, 

 possesses all characters of maturity. 



Regarding colors, there is hardly any difference between these 

 specimens, with the exception that the smaller bird presents one 

 feather of orange rufous on the chin, while in the larger bird the 

 whole chin Is slightly suffiised with rufous. Perhaps when quite 

 adult this species may get an orange rufous chin spot, as in many 

 species of Synallaxis. 



The nearest ally of 6". coryi may perhaps be S. ftiUginosa Lafr. 

 of Colombia, which presents quite the same form and general 

 structure of the tail-feathers, but is quite different in its colora- 

 tion. 



In S. fulighiosa both webs of all the tail-feathers are of a uni- 

 form dark rufous brown, inclining to chestnut. In 6". coryi the 

 tvTO or four middle tail-feathers have their inner webs uniform 

 dusky or blackish brown, only the outer webs being rufous 

 brown, as in S. ftdiginosa. 



The outer tail-feathers in the same way show more or less of 

 blackish brown on the inner margins of the basal portion on their 

 inner web, while the outermost are uniform rufous brown, as in 

 the Bogotan species. 



The upper parts of the body in'^S". coryi are of a very dark and 

 sombre sepia or bistre brown with a slight admixture of rufous 

 brown. The upper part of the head is a little darker and blacker 

 or less rufescent than the back. In S. ftdiginosa all the upper 

 parts of the body are clear rufous brown (perhaps burnt umber 

 of Ridgway's nomenclature), the top of the head being still 

 brighter and more rufescent than the back. 



The c/^/(^/' distinguishing character of S. coryi consists in its 

 cinnainon rufous superciliary ox postocular stripe, which begins 

 just above the eye and runs to the sides of the neck. The sides 

 of the head and neck are also varied with cinnamon-rufous, but 

 a little darker and less vivid than the stripe behind the eye. In 

 fuliginosa there is a grayish superciliary stripe, the upper ear- 

 coverts are brown, the under ones dark gray, as well as the re- 

 maining portion of the sides of the head and neck. 



