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ARTICLE XIII. Further Notes on Maximilian Types of South 

 American Birds. By J. A. ALLEN. 



Since the publication of my paper " On the Maximilian types 

 of South American Birds in the American Museum of Natural 

 History," in December, 1889,* the types of Maximilian's Anthus 

 pcecilopterus have come to light, and it has been found that the 

 type of Maximilian's Myiothera ardesiaca was wrongly referred to 

 Hypocnemis myiotherina (Spix), from which it proves to be even 

 generically distinct, and also not referable to any of the commonly 

 recognized genera. 



Rhopocichla, gen. nov. 



Bill much compressed and attenuated ; width and depth at nostrils equal ; 

 wings rounded, shorter than the graduated tail ; tarsi long and slender, smooth, 

 the scutes obsolete. 



Type, Myiothera ardesiaca Wied. 



This genus is allied to Pyriglena, but has the bill much more 

 compressed, the tail relatively longer, as also the tarsi, which are 

 not obviously scaled. The plumage is not black, and there is no 

 concealed white at the base of the interscapulars. 



Rhopocichla ardesiaca 



" Myiothera ardesiaca LIGHT., MS. Mus. Berl." 



Myiothera ardesiaca WIED, Beitr. Naturg. Bras., Ill, 2, 1831, p. 1055. 



Myrmeciza ardesiaca WIED (MS., on label and in his MS. Catalogue). 



Formicivora ardesiaca MENETR., Mem. Acad. St. Petersb., ser. vi (Sci. Nat.), 



I, 1835, p. 507 (ex Wied). 



Myrmonax ardesiaca BURM., Thiere Bras., Ill, 1856, p. 65 (in part). 

 Myrmonax myiotherinus CAB., Orn. Not. in Wiegm. Arch., 1847, i, p. 210 (in 



part). 

 Formicarius (Myrmoborus) myiotherinus GRAY, Hand-1. Bds., I, 1869, p. 300, 



No. 4443 (in part). 



Formicarius myiotherinus GlEBEL, Thes. Orn., I, 1875, p. 179 (in part). 

 Hypocnemis myiotherina TACZ., Orn. Per., II, 1884, p. 65 (in part). RIDGW. 



(MS. label). ALLEN, Bull. Am. Mus. Nat. Hist., II, No. 3, Dec. 1889, pp. 



255, 275- 



Adult Male (No. 6827, Am. Mus. Nat. Hist.). Above nearly uniform dark 

 plumbeous, wings and tail (especially the latter) darker ; below deep ash gray, 

 a little lighter on the middle of the abdomen ; whole throat including fore neck 

 deep black, strictly limited laterally to the space between the mandibular rami ; 



* Bull. Am. Mus. Nat. Hist., Vol. II, No, 3, pp. 309-276. 

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