132 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



of the basal portions of the quills, which are fulvous; lores, cheeks, 

 and superciliary stripe pale buff, the tirst mixed, the rest finely squa- 

 mate with olive l)r()wn; auriculars ochraceous buff", on lowej- half 

 mixed with olive brown, on upper portion dark brown mixed with 

 buffy; sides of neck ochraceous, with squamate markings of dark olive 

 brown; chin and throat deep buff", unmarked; rest of inferior surface 

 dull o-rayish olive brown, much paler than the upper parts, and broadly 

 streaked, particularlv on median portion, with dull ochraceous l)uff, 

 the crissum rather more rufescent; lining of wing ochraceous buff'. 

 "Iris brown. ""* 



The difference in size exhibited l)y the single specimen above 

 described is so great that it seems not to ])e attributable to sex or age, 

 but to indicate a geographical race worthy of recognition. The char- 

 acter of the dorsal markings is constant in the six Brazilian specimens 

 examined. Both of the synonyms of Pieolaptrs fent/iro.sfr/'.s — Dcndm- 

 C02:>H>< fuscufi Vieillot,^ and Pieolaptcs (juttata Lesson,^ refer without 

 doubt to the bird from Brazil, so that the Paraguay form is without 

 a name. 



The size of both fcindrostrl-s and apothctus is shown in the following 

 table of millimeter measurements: 



Familv FURNARIID.l^]. 



SITTASOMUS ERITHACUS ( Lichtenstein). 



Dendrocolaptes erithaciis JjicHTEyiiiTEit^, Abhaiull. Akad. Berl., 1820, p. 259, pi. i. 

 Sittasomiis eryihacus Bonaparte, Consp. Avium, I, 1850, p. 209. 



The single example differs from one taken at Bahia, Brazil, in its 

 deeper, more yellowish olive color both above and below. "Iris 

 brown." 



XENICOPSIS ACRITUS ( Oberholser). 



Anabazenops acriius Oberhol.ser, Proc. Biol. Soc. Washington, XIV, 1901, p. 187. 

 Xenicopsis acritus Oberholser, Proc. U. S. Nat. Mus., XXV, 1902, p. 61. 



Chars, sjj. — Similar to Xenicopsis oleagineiis (Sclater), but decidedly 

 darker, particularly below, the color throughout greenish olive instead 

 of olive brown, the superciliary stripe deeper ochraceous, the throat 

 more yellowish, the light areas of the lower surface more greenish. 



'Nouv. Diet. d'Hist. Nat., XXVI, 1818, p. 

 2 Cent. ZooL, 1830, p. 93, pi. xx.xn. 



117. 



