FAMILY FURNARIIDAE 99 



under surface olive-brown, becoming olive on the sides and flanks ; 

 crown feathers blacker, so that the paler central streaks are more 

 prominent ; back darker olive-brown ; wings darker. 



Measurements. — Males (10 from Costa Rica, Bocas del Toro, and 

 Veraguas), wing 85.2-93.1 (88.6), tail 70.2-77.5 (72.3), culmen 

 from base 23.9-25.5 (24.7), tarsus 23.6-25.1 (24.3) mm. 



Females (10 from Costa Rica and Bocas del Toro), wing 81.5-86.7 

 (84.4), tail 66.0-73.7 (69.5), culmen from base 23.0-25.0 (24.2), 

 tarsus 23.3-24.5 (24.0) mm. 



Resident. On the Caribbean slope in Bocas del Toro (recorded to 

 730 meters on the Rio Changuena) and western Veraguas (east to 

 Calovevora). 



Two in the Salvin-Godman collection in the British Museum 

 (Natural History) collected by Arce, labeled "Veragua" and "Santa 

 Fe," probably are from Calovevora, as the bird has not been re- 

 corded from the Pacific slope. The race ranges north in Central 

 America through eastern Costa Rica and eastern Nicaragua. 



Near Almirante, Bocas del Toro, I found these birds in forested 

 areas bordering Bahia Almirante, in low undergrowth, in such heavy 

 shadow that they were seen with difficulty. In Costa Rica, Slud 

 (Bull. Amer. Mus. Nat. Hist., vol. 128, 1964, pp. 206-207) found 

 them in areas of humid forest from sea level to 1200 meters, but 

 absent in regions of tropical dry forest. Usually they were seen 

 alone or in pairs, less often in larger number, perhaps a family party. 



The nest described by M. A. Carriker, Jr., (Ann. Carnegie Mus., 

 vol. 6, 1910, p. 640) on the Rio Sixaola, the boundary between 

 Panama and Costa Rica, from its location "in the hollowed top of a 

 broken tree-top" was probably that of some other species, as is indi- 

 cated also by the large size listed for the egg (31 x24 mm). 



AUTOMOLUS OCHROLAEMUS PALLIDIGULARIS Lawrence 



Automolus pallidigiilaris Lawrence, Ann. Lye. Nat. Hist. New York, vol. 7, 

 1862, p. 465. (Atlantic slope, Panama Railroad, Canal Zone, Panama.) 



Characters. — Definitely paler throughout ; lighter brown above, 

 with lower rump and upper tail coverts more cinnamon-russet ; chin 

 and upper foreneck mainly white — pale buff only on the sides ; 

 superciliary streak paler, less prominent ; under surface centrally 

 light brownish gray. 



In two males taken March 5. 1961, near the Candelaria Hydro- 

 graphic Station, Panama, the iris was wood brown ; the maxilla varied 

 from dull grayish brown in one to fuscous in the other ; mandible 

 greenish neutral gray, shading to dull honey yellow on the mandib- 



