ARREMON. 469 



Genus ARREMON Vieill. 



Arremon Vieillot, Analyse nouv. Ornith. p. 32, 1816. Type A. taci- 

 turnus (Herin.). 



Fig. 178. — Arremon taciturnus. 



In this genus the bill is pointed and conical, the length of the 

 exposed culmen exceeds the depth at the base by about one-third. 

 The wing is rounded, the third, fourth, fifth, and sixth primaries 

 are longest and subequal, the second is intermediate in length 

 between the sixth and seventh, and the first about four-fifths the 

 length of the second. The tail is rounded at the tip, the middle 

 feathers exceed the outermost by about one-fifth. The tarsus is 

 about twice the length of the exposed culmen. Coloration : male 

 and female different. 



645. Arremon taciturnus. 

 Pectoral Spakrow. 



Tanagra taciturna Herm. Tab. AfRn. Anim. p. 214 note, 1788. 



Tanagra silens Bodd. Tabl. Pl. Enl. p. 46, 1783 (Guiana). 



Arremon silens Cab. in Scliomb. lleis. Guian. iii. p. 677, 1848 ; Salvin, 

 Ibis, 1885, p. 212 (Eoraima, 35OO-4O0O ft., Merume Mts., Cama- 

 cusa, Atapurau Kiver) ; Sclater, Cat. B. Brit. Mus. xi. p. 273, 1886 

 (Bartica Grove, Atapurow Eiver, Camacusa, Merume Mts., 

 Eoraima) ; Brabourne & Chubb, B. S. Amer. i. p. 886, no. 3957, 

 1912 ; Beebe, Tropical Wild Life in British Guiana, p. 136, 1917 

 (Bartica). 



Arremon taciturnus Stresem. Nov. Zool. xxvii. p. 828, 1920. 



Adult male. Entire back and outer aspect of wings yellowish 

 bronze-green ; bend of wing bright yellow ; inner webs of 

 bastard-wing, greater upper wing-coverts, primary-coverts, and 

 flight-quills blackish brown ; tail also blackish brown more or 

 less tinged with bronze-green ; head, nape, sides of face, and a 



