Todd-Carriker : Birds of Santa Marta Region, Colombia. 377 



Rhynchocyclus exortivus Brabourne and Chubb, Birds S. Am., I, 1912, 271 

 (ref. orig. descr. ; range). 



Additional records: San Francisco, Pueblo Viejo (Brown). 



Nineteen specimens : Mamatoco, Cincinnati, La Tigrera, Fundacion, 

 Don Diego, Dibulla, Tucurinca, and Arroya de Arenas. 



Typical Rhynchocyclus sulphurescens from southeastern Brazil is 

 a large, richly colored, dark bird — more greenish, less yellowish be- 

 low, and darker green above than the Santa Marta bird, to which Mr. 

 Bangs has accordingly applied the name exortivus. It would seem 

 to be sufficiently distinct also from R. sulphurescens assimilis von 

 Pelzeln, judging from the description alone. Recently Messrs. Hartert 

 and Goodson have reviewed the races of this species, reaching con- 

 clusions which in the light of our material we are unable en- 

 tirely to accept. Our series shows that there is considerable indi- 

 vidual and seasonal variation in the depth of the yellow below, the 

 gray of the pileum, etc., and doubtless if these authors had had a good 

 series of Santa Marta specimens for comparison they would not have 

 been led to describe so many additional forms. (Compare, in this con- 

 nection, Mr. Cory's recent paper, above cited.) 



This species does not range above the Tropical Zone, and is most 

 numerous in the foothills, although it is not so abundant as R. flaviven- 

 tris aurulentus. While it was present in small numbers at Don Diego 

 and Dibulla on the north coast, it was commoner between Mama- 

 toco and La Tigrera. It keeps higher up in the trees than the other 

 species, and prefers either shady forest or woodland along streams. 



339. Rhynchocylus flaviventris aurulentus Todd. 



Rhynchocyclus flaviventris (not Muscipeta flaviventris Wied) Salvin and 



GoDMAN, Ibis, 1880, 124 (Santa Marta and Arihueca). — Sclater, Cat. Birds 



Brit. Mus., XIV, 1888, 171 (Santa Marta and Arihueca), — Bangs, Proc. 



Biol. Soc. Washington, XII, 1898, 136 ("Santa Marta"). — Allen, Bull. 



Am. Mus. Nat. Hist., XIII, igoo, 146 (Bonda and Cacagualito) ; XXI, 



190S, 284 (Bonda; descr. nest and eggs). 

 Rhynchocyclus flaviventris flaviventris Hellmayr, Nov. Z06I., XVII, 1910, 



296 (Santa Marta, in range). — Cory, Proc. Biol. Soc. Washington, XXXII, 



1919, 222 (Santa Marta localities; crit.). 

 Rhynchocyclus flaviventris aurulentus Todd, Proc. Biol. Soc. Washington, 



XXVI, 1913, 171 (Mamatoco; orig. descr.; type in coll. Carnegie Mus.). — 



Chapman, Bull. Am. Mus. Nat. Hist., XXXVI, 1917, 437 ("Santa Marta"; 



crit.). 



