152 Proceedings of the Biological Society of Washington. 



Wing Tarsus Tail 

 *Cranioleuca graminicola (Sclater)f 



Pseudosiptornis ottonis (Berlepsch) monotypic 60 21 95-110 



Siptornopsis hypochondriasis (Salvin) monotypic ..65 20 93 



Siptornoides flammulata flammulata (Jardine) 63 24J^ 74 



Siptornoides flammulata multostriata (Sclater) 65 25 75 



Siptornoides flammulata quindiana (Chapman) 63 25 75 



Siptornoides flammulata taczanowskii (Berlepsch and 



Stolzmann) .63 24 87 



Siptornoides flammulata maculicauda (Berlepsch) 



*Siptornoides virgata (Sclater) 



Siptornoides (Eusiptornoides) anthoides (King) 70 20 76 



Siptornoides (Eusiptornoides) hudsoni (Sclater) 75 22 84 



Siptornoides (Eusiptornoides) lilloi (Oustalet) ...76 24 85 



Siptornoides (Eusiptornoides) punensis (Berlepsch and 



Stolzmann) 76 25 90 



Siptornoides (Eusiptornoides) maluroides (d'Orbigny 



and Lafresnaye).. 53 163^ 63 



Key to the Species and Subspecies Belonging to the Allied Genera 



Siptornis, Cranioleuca, Pseudosiptornis, Siptornopsis, and 



Siptornoides (Adult Males) with Type Localities. 



A. Back not distinctly streaked, 

 a. Cap and more or less of upper parts (at least upper back) nearly the 

 same color. 

 a 1 . Cap and at least upper back rufous or rufous chestnut or rufous 

 brown. 

 a 2 . Under parts plain (not mottled or spotted). 



1. A whitish superciliary stripe 



Cranioleuca vulpina vulpina (Pelzeln). 

 (Rio Claro, Goyaz, Brazil.) 



2. Male similar, but female lacks the rufescent upper back 



Cranioleuca vulpina alopecias (Pelzeln). 

 (Rio Branco, N. Brazil.) 

 b 2 . Under parts more or less mottled, the feathers tipped with dusky. 

 1. Front of crown streaked; sides of body reddish brown 



Cranioleuca mulleri (Hellmayr). 

 (Mexiana I., N. E. Brazil.) 

 b 1 . Cap (ground color) and upper parts, nearly the same color (either 

 brown, or olive brown, or buffy brown or grayish). 

 b 2 . Whole tail plain (tail feathers uniform, not bicolored nor dis- 

 tinctly marked with brown or black on some feathers). 

 b 3 . Crown streaked. 



b. Underparts olive grayish or buffy grayish. 

 1. Primaries edged with rufous 



Cranioleuca subcristata (Sclater) . 

 (Caracas, Venezuela.) 



t I have not seen this species and it may not belong to this genus. 



