N... r28l. BIRDS COLLECTED TX PAUAarAY—OBEJUTOr^SE]:. 189 



EUSCARTHMUS MARGARITACEIVENTER (D'Orbigny and Lafresnaye). 



TodI rostrum margarltiiciin III, I- 1)'( )Ki!i(i.\v and Lafj{ksnave, Synop. Aviuiii, I, 



1837, p. 46. 

 EusrartlDiiiis margaritdccirnitrix Sclateh and Sai.vix, Proc Znol. Soc. Lond., ISTil, 



p. 612. 



One specimen in perfect plumage. "' Iris Imfi." 



There are possibly two species at present united by authors under 

 E. margavHacementer. The abov(^ (waniple agrees with the original 

 description of margaritaeeiventer in being distinctly, even conspicu- 

 ousl}", streaked on chin, throat, and breast. Dr. Sclater, however, 

 describes this species as being without streaking on the lower surface,^ 

 though he fails to note that this is not in correspondence with the 

 original description. If the birds prove really to })e representatives 

 of two forms, the name for the nonstreaked species is probably 

 Eu8(Mrfhiiitis iriicfiereri Sclater and Salvin,'^ the diagnosis of which 

 seems to indicate such a difference from true /T. inargarltao'hnndei'. 



MACHETORNIS RIXOSUS (Vieillot). 



Tyrannits ru;osu« ViEiLLOT, Nouv. Diet. d'Hist. Nat., XXXV, 1S19, \^. 85. 

 J/f/r'/^etorH/.s rM0.s?i.s BuRMEisTEK, Syst. Ueber. Vog. Bras., II, 185(), p. 514. 



A single female,' apparently identical with birds from Brazil and 

 Buenos Ayres. "Iris brown." 



COPURUS COLONUS (Vieillot). 



Miixintixt roUmus Vieillot, Nouv. Diet. d'Hist. Nat., XXI, 1818, p. 448. 

 (hjHirux roldiniK Cabanis and Heine, Mus. Hein., II, 1859, p. 41. 



One adult male. '"Iris brown."" The head is rather more grayish 

 than in the adult specimens available for comparison, but whether this 

 is due to age or to geographical variation is not evident from our 

 material. 



LICHENOPS PERSPICILLATA (Gmelin). 



Motdvilla perApieUlaUi (tMELix, Syst. Nat., I, 1788, p. 969. 



Liclienops perspicilkiiKs GoniA), Zool. Yoy. Beagle, III, 1841, p". 51, ])!. ix. 



Two specimens. ''Iris buff' [young male]; iris yellow [adidt male]." 

 This immature male is quite similar to the adult female, but is darker 

 and is more broadly streaked on the upper parts, breast, and lower 

 tail-coverts. 



KNIPOLEGUS CYANIROSTRIS (Vieillot). 



Miixncapa ci/wilrostris yiEiLhor, Nouv. Diet. d'Hist. Nat., XXI, 181S, ji. 447. 

 Cnipolegus cyanirostr is Boa AF ARTE, Consp. Avium, I, 1850, p. 195. 



Two specimens, apparently typical. "Iris red [adult male]; iris 

 brown [adult female]." 



•Cat. Birds Brit. Mus., XIV, 1888, pp. 78, 80. 

 ^ Nomenclator Avium Neotrop., 1873, p. 158. 



