Todd-Carriker : Birds of Santa Marta Region, Colombia. 319 



comparison of a series of specimens of both forms. Not only is 

 granadensis smaller, but also the flanks in the male are paler, and 

 there is much more white on the tibiae and crissum. Females of the 

 two respective races differ even more strikingly, those of granadensis 

 being distinguishable at a glance by the decidedly paler color of the 

 rufous parts, both above and below. (Compare, in this connection, 

 Menegeaux and YLt\\m3.yT , Bulletin Societe Philomathiquede Paris (9), 

 VIII, 1906, 25, and Hellmayr, Proceedings Zoological Society of Lon- 

 don, 1911, 1157). 



This handsome large ant-thrush was met with only in the low, 

 swampy forest below Tucurinca, where three individuals were seen . 

 and two secured, both males. It doubtless inhabits the swampy forest 

 contiguous to* the Cienaga Grande and the Magdalena River. It is 

 partial to tangled undergrowth and masses of vines, although it is often 

 seen higher up in the trees than many others of this fanlily are ac- 

 customed to go, 



Family PTEROPTOCHID^. Tapaculos. 



270. Scytalopus sancts-martae Chapman. 



Scytalopus sylvesiris (not of Taczanowski) Bangs, Proc. Biol. Soc. Wash- 

 ington, XIII, 1899, loi (San Francisco; crit.). — ^Allen, Bull. Am. Mus. Nat. 

 Hist., XIII, 1900, 162 (Bangs' reference). 



Scytalopus latebricola (not of Bangs) Allen, Bull. Am. Mus. Nat. Hist., XIII, 

 1900, 121, 162, excl. syn. (Valparaiso). 



Scytalopus sancta-martte Chapman, Auk, XXXII, 1915, 418 (Valparaiso [type- 

 locality] and San Francisco ; orig. descr. ; type in coll. Am. Mus. Nat. 

 Hist. ; .crit.), 422 (diag.), 423 (meas.). — Hellmayr, Orn. Monatsber., XXX, 

 1922, 54, in text (Santa Marta localities; crit.). 



Five specirnens :■ Cincinnati and Pueblo Viejo. 



A single not fully adult bird taken by Mr. Brown at San Francisco 

 was provisionally referred to 6". sylvesiris by Mr. Bangs. Dr. Allen 

 recorded two specimens sent in by Mr. Smith from Valparaiso as 5". 

 latebricola. Upon the receipt of the above examples, taken at the 

 same locality, it at once became evident that they had nothing to do 

 with the latter species, and further comparison indicated that they 

 could not safely be referred to any other described form. It so hap- 

 pened that Dr. Chapman, after a careful survey of the entire group, 

 had independently arrived at the same conclusion as the writer, and his 



