Todd-Carriker : Birds of Santa Marta Region, Colombia. 529 



In position, form, and in general structure the four nests are all very 

 similar. Their external diameter is about 5 inches, internal about 3; 

 depth externally 4 inches, depth of cavity about 2^2 inches." 



506. Arremonops tocuyensis Todd. 



Eleven specimens : Rio Hacha and Arroya de Arenas. 



The present species was described by the senior author a few years 

 ago (Annals Carnegie Museum, VIII, 1912, 198), from a single 

 specimen collected at Tocuyo, southwest of Barquisimeto, Venezuela. 

 The capture of additional specimens is thus doubly gratifying, con- 

 firming as it does the validity of the new form and materially extend- 

 ing its range. The present series are a little grayer above than the 

 type, doubtless due to season, but are obviously the same. The species 

 is perfectly distinct from A. conirostris, for while the under parts are 

 about the same in color, the upper surface is much paler and grayer, 

 the pileum and sides of the head are also paler gray, the lateral crown- 

 stripes and postorbital stripes are browner (approaching thus A. 

 superciliosus), and the size is much less, as indicated by the following 

 table of measurements : 



No. Sex. Locality. Wing. Tail. Bill. Tarsus. 



36569 $ Tocuyo, Venezuela (Type) yz 56 15 22 



45609 J 1 Rio Hacha, Colombia 67 53 14 23 



45610 J 1 Rio Hacha, Colombia 65 52 14 21.5 



45612 $ Rio Hacha, Colombia 66 56.5 13.5 21 



45666 $ Rio Hacha, Colombia 61 48 13.5 22 



45608 2 Ri° Hacha, Colombia 62 54 13.5 21 



4561 1 5 Ri° Hacha, Colombia 61 49 13.5 20.5 



45632 $ Rio Hacha, Colombia 61 47 14 21 



This sparrow is a fairly common bird in the scrub around Rio 

 Hacha, where nine specimens were taken in three days' collecting. 

 It is a typical representative of the Tropical Zone fauna of the arid 

 central plateau region of west-central Venezuela, which extends across 

 the Gulf of Venezuela to the Goajira Peninsula. 



507. Coryphospingus pileatus brevicaudus Cory. 



Twenty-five specimens : Dibulla, Rio Hacha, Fonseca, and Valencia. 



All the females are more or less distinctly streaked below — a char- 

 acter not mentioned by Sharpe (Catalogue of the Birds in the British 

 Museum, XII, 1888, 804) in his description. One even has a touch of 



