320 Annals of the Carnegie Museum. 



paper on the genus, appearing just at this time, became a welcome con- 

 tribution towards a better understanding of this exceptionally difficult 

 group. 



The relationships of this species, as pointed out by Dr. Chapman, 

 are clearly with S. micropterus micropterus of Ecuador and Colombia, 

 with which it agrees in slaty gray back and breast, white vertical spot, 

 etc. It differs from that species in its generally lighter coloration, 

 paler feet (in the skin), and smaller size. In juvenal dress, illustrated 

 by No. 42,474, Cincinnati, July 10, it is much less rusty below, the 

 throat and breast especially. Two females (probably immature) from 

 Pueblo Viejo are washed with brown above and are much paler gray 

 beneath, thus suggesting S. sylvestris; the vertical spot is reduced to 

 a mere trace, and the tail is brown, not dark slate as in. the male. It 

 as hardly possible that these' two specimens would belong to another 

 species, however. Measurements of the four adults are subjoined. 



No. Sex. Locality. Date. Wing. Tail. Bill. Tarsu3. 



42473^ <? Cincinnati July 10, 1913 5° 31 13 19 



44960 1 (J Pueblo Viejo March 13, 1914 .... 52 14 20 



449671 5 Pueblo Viejo March 14, 1914 .... 51 36 12.5 18.5 



63043^ S Pueblo Viejo March 14, 1914 .... 50 35 13 20 



Not a rare bird on the slope of the San Lorenzo, but a very difficult 

 one to secure. It is a Subtropical Zone form, ranging from about 

 4,000 up to 6,000 feet, and is found only in the heavy forest, almost 

 always in some dark, tangled ravine. In the Sierra Nevada it was 

 found to be fairly common in the same tract of woodland at Pueblo 

 Viejo in which Grallaria regulus carmelitcB was taken. It keeps on the 

 ground, and has a weak little call-note, frequently uttered,, by which 

 its presence may easily be detected, but it can slip away in the most 

 astonishing manner. Time after time the writer has been within ten 

 feet of an individual, only to have it slip off as completely as if it had 

 vanished into the air. 



271. Scytalopus latebricola Bangs. 



Scytalopus latebricola Bangs, Proc. Biol. Soc. Washington, XIII, 1899, loi 

 (Paramo de Chiruqua [type-locality] and Paramo de Macotama; orig. 

 descr. ; type now in coll. Mus. Comp. Z06I.). — Shaepe, Hand-List Birds, 



1 Collection Carnegie Museum. 



2 Collection Academy of- Natural Sciences of Philadelphia. 



