518 Bulletin American Museum of Natural History. [Vol. XXXVI, 



of the abdomen. Possibly it represents a new race. It shows no approach 



toward C. meridw but in its unbarred rump and flanks resembles asquatorialis. 



Valle de las Pappas, 2 ; Paramo of Santa Isabel, 15. Chipaque, 1 . 



(3434a) Cistothorus apolinari Chapm. 



Cistothorus apolinari Chapm., Bull. A. M. N. H., XXXIII, 1914, p. 635 (Savanna 

 at Bogotd). 



Char. sp. — Similar to Cistothorus cequatorialis (Lawr.) but very much larger, 

 feet particularly larger and heavier, color throughout paler, the dorsal streaks and 

 bars in tail and wings broader; the outer pair of rectrices unbarred; outer margin 

 of three outer primaries unbarred, wing quills much broader. 



The Bogota Savanna with an altitude of about 8600 ft., is in the Temper- 

 ate Zone, and the bird here described is therefore evidently a zonal repre- 

 sentative of the cequatorialis group, and appears to be isolated on the 

 Savanna, This fact, in connection with its strongly marked characters 

 and the occurrence of cequatorialis in the zone above and distant but a 

 few miles, indicates, in my mind, the segregation and specific distinctness 

 of the Savanna bird. 



Suba Marshes, Bogota Savanna, 5. 



(3436) Troglodytes musculus striatulus (Lafr.). 



T[hriothorus] striatulus Lafr., Rev. Zool., 1845, p. 338 (Bogotd; I suggest Honda). 

 Troglodytes tessellatus Sol. & Salv., P. Z. S., 1879, p. 493 (Medellin; Concordia). 

 Troglodytes striatulus Stone, Proc. Acad. N. S., 1899, p. 308 (Honda). 

 Troglodytes musculus striatulus Oberholsee, (part), Proc. U. S. N. M., XXVII, 

 1904, p. 205. 



The House Wren is the only passerine bird which we found to range 

 continuously from the Magdalena Valley over the Eastern Andes to its 

 eastern base. In this faunally diversified area it appears in three forms, 

 one of which occupies the Tropical and Subtropical Zones of the western 

 slope of the range, one the Temperate Zone on both slopes, and a third is 

 found in the Tropical and Subtropical Zones of the eastern slope of the 

 range. 



For the first, or Magdalena Valley form, I accept the name striatulus of 

 Lafresnaye, the second or Temperate Zone form, comparison with the type 

 shows to be Troglodytes columbae Stone, while the form from the eastern 

 base of the range appears to be unnamed and is described beyond as Troglo- 

 dytes musculus neglectus. 



Dr. Glover M. Allen writes me that the type of Lafresnaye's Thrio- 

 thbrus striatulus was not included in the Lafresnaye collection obtained by 



