1917.] Chapman, Distribution of Bird-life in Colombia. 437 



parison. In size and in the color of the bill this species agrees with R. 

 klagesi, which Miller also found at Florencia, but the uniformly greenish 

 underparts, including the throat and chin, and green crown, of the same 

 color as the back, distinguish viridiceps. 

 Florencia, 1. 



(2770) Rhynchocyclus flaviventris aurulentus Todd. 



Rhynchocyclus flaviventris aurulentus Todd, Proc. Biol. Soc. Wash., XXVI, 1913, 

 p. 171 (Mamotoco, Santa Marta, Col.). 



Rhynchocyclus flaviventris Allen, Bull. A. M. N. H., XIII, 1900, p. 146 (Bonda; 

 CacaguaUto). 



Found by us only in the lower Magdalena at Varrud. Wied's types 

 are too faded to be of value for subspecific determination, but a series from 

 Santa Marta is brighter than two specimens from Bahia. Our bird is of 

 course referable to the Santa Marta form. 



Varrud, 1. 



(2770a) Rhynchocyclus klagesi Ridgw. 



Rhynchocyclus klagesi Ridgw., Proo. Biol. Soc. Wash., XIX, 1906, 115 (Maripa, 

 Venezuela). 



After comparison with the type, I refer two specimens from La Morelia 

 and three from Florencia, in the upper Caqueta region, together with one 

 from Mt. Duida, near the head of the Orinoco to this species. It is charac- 

 terized by small size, (wing, cf, 55 mm.), a gray crown, and chiefly by a 

 dark, horn-color mandible which, basally, is paler, and is therefore quite 

 unhke the uniformly colored, brownish mandible of sulphurescens. The 

 specific distinctness of klagesi and sulphurescens is attested by the fact that 

 at Florencia and Mt. Duida we have found both klagesi and sulphurescens 

 assimilis. 



La Morelia, 2; Florencia, 3. 



(2773) Todirostrum cinereum cinereum (Linn.). 



Todus einereus Linn., Syst. Nat., I, 1766, p. 178 (Surinam). 



Todirostrum cinereum Cass., Proo. Acad. N. S. Phila., 1860, p. 144 (Carthagena); 

 Wtatt, Ibis, 1871, p. 332 (Cocuta Valley; San Nicholas); Scl. & Salv., P. Z. S., 

 1879, p. 512 (MedeUin; Sta. Elena; Remedios); Allen, Bull. A. M. N. H., XIII, 

 1900, p. 150 (Cienaga). 



Todirostrum cinereum cinereum Hellm., P. Z. S., 1911, p. 1128 (Guineo). 



Ranges throughout the larger part of the Tropical Zone of Colombia. 

 Specimens from the Atrato and San Juan regions average smaller in size. 



