( 65 ) 

 Measnrements of specimens from the various localities : 



Wing. Tail. Bill. 



Adult (not sexed), Gaayaros,' 



Bolivia 

 Adult (not sexed), (Jhiqiiitos, 



Bolivia 



r 



T)'pes of 

 JV. (V orbignyana. 



112 102 38 mm. 



108 92 35 



3 (?<^,S.Mateo,North Bolivia— Mns.Bevlepsch 115—117 103—105 37J „ 



3 ? ? „ „ „ „ „ „ 107—108 97—100 37 „ 



7 c?c? Mattogrosso,Natterercoll.Mus. Vieuua. 120—124 100—115 38— 43 mm. 



3?? „ „ „ „ „ 110—114 96—102 38—40 „ 



107. Dendroplex pious (Gm.). 



Oriohii Pirns Oraelin, %s/. Nai. 1. ii. p. 384 (1788.— ex Daubenton, F/. en?. 605: "Talapiof— 



Cayenne). 

 Deiiilriiplex pKus Pelzeln, I.e. p. 40 (Aragiiay). 



Nos. 2314, 2408. ? ad., ? imm., Rio Araguaya, July, August 1906.— Wing 95, 

 98 ; tail 81, 80 ; bill 27i, 28 mm. 



No. 2166. S ad., Rio Thesouras, May 1906.— Wing 106 ; tail 91 ; bill 27^ mm. 



The bird from the Rio Thesouras is earthy brown underneath like specimens 

 from Cayenne, Bahia, etc., while the two others from the Araguay are rather more 

 rnfescent, tliereby approaching Upper Amazonian specimens. Of. M6n^gaux & 

 Hellmayr, Mini. Soc. Hist. Nat. Aiitun xix. 1906, pp. 108—110. 



108. Xiphocolaptes albicoUis (Vieill.). 



DendriKojms aWicullis Vieillot, Nauv. Diet. xxvi. p. 117 (1818. — " Bresil"). 



No. 1653. Adult, Faz. Esperan9a, December 1905.— Wing 135 ; tail 121 ; 

 bill 46| mm. 



Similar to an adult male from S. Paulo (Ypanema), but with shorter and 

 slenderer bill, and somewhat paler under-parts. New to Goyaz. 



109. Picolaptes angustirostris bivittatus (Lcht.). 



[DeiidrO(:nj)m angustirostris Vieillot, Nouv. Diet. xxvi. p. 110 (1818. — ex Azara No. 242 : Paraguay).] 

 Deiidrocolaptea bivittatus Lichtenstein, Atjhctndl. Akad. Berlin a. d. J. 18i0-21. pp. 258, 206, tab. ii. 

 fig. 2 (1822. — "in provincia S. Paulo"). 



Nos. 1892, 1914, 1931, 1937, 2042. c?c?, Goyaz, March, April 1906.— Wing 

 98—101 ; tail 80—87 ; bill 30—33 mm. 



Nos. 1896, 1932, 1999, 2019, 2043, 2059. ? ?, Goyaz, March, April 1906.— 

 Wing 96—100 ; tail 81—88 ; bill 30—33 mm. 



No. 2248. S ad., Rio Araguaya, June 1906.— Wing 97 ; tail 82 ; bill 32i mm. 



No. 2124. ? ad., Rio Thesouras, May 1906.— Wing 93 ; tail 78 ; bill Sl'mm. 



Nos. 1642, 1661, 1775. <S <S i , Faz. Esperan^a, December 1905, January 1906. 



P. a. bivittatus (Lcht.) is a very close ally of P. a. angustirostris (Vieill.), and 

 diflPers only by having the breast and abdomen uniform creamy white. In the 

 typical race from Paraguay the feathers of the belly are more or less distinctly 

 edged with brown or ashy. 



5 



