1890.] Elliot on the Genua Dendrornis. J ■*] I 



cies. As will be noticed in my Key, the two great groups into 

 which the known species can be divided are' characterized by 

 having the back uniform in color, or striated, and so few arc the 

 former that out of the 23 species acknowledged in this paper, but 

 three can be placed in the first division. Now, as will be noticed, 

 Spix says of his bird, "dorsum immaculatum," and his figure 

 shows the back without the spots or lines. Tschudi's species has 

 the back covered with narrow buff lines. The distinction here is 

 important, and would alone seem to be sufficient to prevent these 

 birds from being considered as the same species. The measure- 

 ments given by Spix do not at all agree with the typical specimen 

 of Tschudi's bird before me, being much less in all of them, except 

 the bill, which is longer. There are other differences in color of 

 the plumage, but not sufficiently definite for me to found an opin- 

 ion, not having Spix's bird before me ; but those I have given, 

 seem to me quite enough to prevent me from considering D. 

 chunchotambo as a synonym of D. occUata. It remains for some 

 one who may have an opportunity of comparing both of the types 

 together to decide their specific standing. 



Dendrornis susurrans. 



Dendrocolaptes susurrans Jard. Ann. Mag. Nat. Hist. 1N47, p. 81, 

 ex Tobago. 



Nusica albisquama Lafres. Rev. Mag. Zool. 1852, p. 465. 



Nusica susurrans Lafres. Rev Mag. Zool. 1850, p. 425. 



Nusica beauperthuysii Lafres. Rev. Mag. Zool. 1850, p. 419; 1852, 

 p. 469. 



Dendrornisfratcrculus RinGW. Proc. U. S. Nat. Mas. Vol. X, 1887, 

 p. 526, ex Brazil. 



Habitat. — Tobago, Trinidad, Venezuela, Brazil, Santarcm 

 (Riker). 



Bill curved at the tip, maxilla blackish brown; mandible paler ; in some 

 specimens dark brown, others yellowish. Crown, nape and cheeks dark 

 brown, each feather with an apical, ochraceous, oval spot. Back yellowish 

 brown, the feathers on upper portion having central, lengthened pale 

 yellow _spots, becoming gradually narrower on the middle of the back, 

 and disappearing altogether on the lower part. Each of these yellowish 

 spots or lines is surrounded by a narrow dark brown border. Rump, 

 wings, and tail, reddish brown. Throat white, the feathers edged with 

 dark brown ; rest of underparts pale yellowish brown, each feather having 

 a central oval yellowish white spot, surrounded with a border of darke 



