TACHYPHONFS. 531 



Genus TACHYPHONUS Vieill. 



Taclniplionus Vieillot, Aniil. Nouv. Ornith. p. 33, ISIG. Tvpe T. ntfas 

 (Budd.). 



Fig. 193. — Tacliiji)lionus riifus. 



The species on which this genus was based have short velvet- 

 like feathers at the base of the forehead. The bill is somewhat 

 long and slender, its width at the base and height at the nostrib 

 are about equal to half the length of the exposed culmen, the tip 

 of the upper mandible is slightly hooked, but there appears to 

 be no tooth on the cutting-edges, and the nostrils are exposed. 

 The wiug is rounded, the third, fourth, and fifth primaries 

 longest and equal, the second is equal to the sixth and the Hrst 

 to the eighth. The tail is slightly rounded at the tip and about 

 seven-eiiihths the leniith of the w-ino-. The tarsus exceeds the 



o o r? 



length of the exposed culmen by about one-fourth. Coloration : 

 male and female different. 



Keij to tlie Species. 



A. Crown of head black like the back. 

 a. Larger, wing more than 80 mm. 



a'. General colour black T. riifus, c?,p. 532. 



b' . General colour rufous T. rufus, $,p. 532. 



h. Smaller, wing less than 80 nun. 



c . General colour of upper surface 



black; shoulder of wiug red T. phontiiceus, d , p. 533. 



d'. General colour of up])er surface 

 dusky-brown, tinged with grey on 



the head T. pJiceniccus, $ , p. 533. 



e'. Head black like the back ; sliuulder 



of wing white T. Jucluosus, 6 , p. 53 I. 



J". Head grey in contrast to the back, 



wliich is olive-green T. luctuosus, $,p. 531, 



V>. Crown of head orange in contrast to the 

 uj)])er back, which is black. 

 c. Middle of thnnit black ; larger, wing 



UKjre than SO mm T. suriiuimits, cT , p. 535. 



g'. Crown of head grey ; back dark 



olive-green T. siiriiKii/nis, ^ , p- 535. 



(I. Middle of throat rufous ; smaller, wing 



less than HO imii T. inlrrcrdcns, d , p. 53(5. 



h'. Crownofheadoclu'eousliko the back. T. iidcrccdens, $ , p. 530. 



2 M 2 



