20 



BIRDS OF BRITISH GUIANA. 



B,ange in British Guiana. Mount Roraima (McConnell collec- 

 tion); Mount Roraima, 5000 feet (Whitely). 

 Extralimital Range . Surinam {Penard). 

 Habits. Unrecorded in British Guiana. 



Genus DYSITHAMNUS Oab. 



Bysithamnus Cabanis, Archiv f iir Naturg. xiii. pt. i. p. 223, 1847. Type 

 D. guttulatus (Lioht.). 



Fig. 11. — Dysithamnus guttulatus: 



This genus has for many years been compared with and placed 

 next to ThamnopJdlus, or those forms included under that name, 

 neither of which appears to have any very close relationship. 



The present genus includes birds of small size and having 

 no crest. The bill is small and sharply hooked — ^the exposed 

 culmen being about three-fourths the length of the tarsus. The 

 ■wing is rounded, the fourth, fifth, and sixth primaries longest, 

 the third is shorter than the sixth but longer than the seventh. 

 The tail is short and nearly square, the outer feather on each 

 side being only about 3 mm. shorter than the middle ones. The 



