Todd-Carriker : Birds of Santa Marta Region, Colombia. 527 



Arremonops conirostris canens Bangs, Proc. Biol. Soc. Washington, XII, 1898, 

 140 ("Santa Marta"; orig. descr. ; type now in Mus. Comp. Zool. ; crit.). — 

 Allen, Bull. Am. Mus. Nat. Hist., XXI, 1905, 291 (Bonda ; descr. nest and 

 eggs). 



Arremonops canens Bangs, Proc. Biol. Soc. Washington, XIII, 1899, 103 (crit.). 

 — Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, 121, 164 (Salvin and God- 

 man's and Bangs' references). — Sharpe, Hand-List Birds, V, 1909, 323 (ref. 

 orig. descr.; range). 



Arremonops venezuelensis Bangs, Proc. Biol. Soc. Washington, XIII, 1899, 

 104 ("Santa Marta"; crit.). — Allen, Bull. Am. Mus. Nat. Hist., XIII, 

 1900, 163 (Bonda). 



Buarremon assimilis (not Tanagra assimilis Boissonneau) Allen, Bull. Am. 

 Mus. Nat. Hist., XIII, 1900, 167 (Bonda; plum.); XXI, 1905, 276 (crit. ;= 

 Arremonops conirostris canens Bangs). — Chapman, Bull. Am. Mus. Nat. 

 Hist, XXXVI, 1917, 160, in text (Bonda). 



Embernagra striaticeps var. canens Dubois, Syn. Avium, I, 1901, 638 (" Santa 

 Marta," in range; ref. orig. descr.). 



Arremonops conirostris venezuelensis Todd, Ann. Carnegie Mus., VIII, 1912 

 199, in text (Santa Marta region; crit.). — Hellmayr and von Seilern, 

 Arch. f. Naturg., LXXVIII, 1912, 69 (Santa Marta region, in range). 



Arremonops conirostris conirostris Chapman, Bull. Am. Mus. Nat. Hist., 

 XXXVI, 1917, 569 ("Santa Marta"; meas. ; crit.). 



Ten specimens : Bonda, Dibulla, Mamatoco, Tucurinca, and Loma 

 Larga. 



Sclater was the first to record this species from the Santa Marta re- 

 gion, his record being based on a specimen secured through Verreaux. 

 Simons secured a specimen also, which was duly recorded by Salvin 

 and Godman. Mr. Brown sent in three specimens, labelled " Santa 

 Marta," but which probably came from the vicinity of Bonda, as ex- 

 plained elsewhere. These were described by Mr. Bangs as a new race, 

 canens, on the grounds of differences in size and coloration as com- 

 pared with true conirostris. The following year he was led to restrict 

 the name canens to apply only to the type, referring the two female 

 specimens to venezuelensis, a form described by Mr. Ridgway only a 

 few months before the publication of canens. As shown by the present 

 writer a few years ago, however, it is practically certain that the pecu- 

 liarities of the type-specimen of the latter are individual in their char- 

 acter. With a series of seventy-one specimens from various parts of 

 Colombia and Venezuela available for study, a great deal of variation 

 is noticeable, but it is individual and seasonal, certainly not geograph- 

 ical. Some specimens are decidedly grayish above, others incline more 

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