ABT. 7 EEVISIOX OF THE GENUS BASILEUTERUS TODD 25 



Geotlilypis stragvlata Cabanis and Heine, Mus. Heineanum, pt. 1, 1850, p. 

 17 (Bahia, Brazil; ref. orig. descr.). — Euler, Journ. f. Oru., vol. IG, 1868, 

 p. 191 (Cantagallo, Brazil; descr. nest and eggs). — Cabanis, Journ. f. 

 Orn., vol. 22, 1874, p. 82 (Cantagallo, Brazil; crit.). 



Trichas stragulata BuRMrasTEB, Syst. Ueber. Thiere Brasiliens, vol. 3, 1856, 

 p. 115 (Prov. Sao Paulo, Brazil; descr.; refs.). 



Basileuterus stragulatus Sclateb, Cat. Amer. Birds, 1861, p. 35 (Brazil; 

 refs.).— Baibd, Rev. Amer. Birds, 1865, p. 243 (diag.), p. 244 (refs.).— 

 Sclateb, Proc. Zool. Soc. London, 1865, p. 285 (refs.; diag.; range). — 

 VON Pelzeln, Orn. Brasiliens, pt. 2, 1868, p. 72 (Registo do Sai, Taipa, 

 Ypanema, Paranagua, Ytarar^, and Rio ParanS, Brazil). — Reinhasdt, 

 Vidensk. Med. Nat. For. Kjobenhavn, 1870, p. 444 (Minas Geraes and 

 Neu Freiburg, Brazil; von Pelzeln's record). — von Berlepsch, Journ. 

 f. Orn., vol. 21, 1873, p. 232 (Blumenau, Santa Cathariua, Brazil; refs.; 

 range). — Heine and Reichenow, Nom. Mus. Heineani Orn., 1882, p. 14 

 (Bahia, Brazil).— Shaepe, Cat. Birds Brit. Mus., vol. 10, 1885, p. 401 

 (Sao Paulo and Lagos dos Patos, Brazil; descr.; refs.). — Allen, Bull. 

 Amer. Mus. Nat. Hist., vol. 2, 1889, p. 215 (crit. on Wied's type). — 

 Koenigswald. Journ. f. Om., vol. 44, 1896, p. 346 (Estado do Sao Paulo, 

 Brazil; refs.). — von Ihering, Rev. Mus. Paulista, vol. 3, 1899, p. 135 

 (Iguape, Sao Paulo, Brazil; Brazilian records) ; vol. 4, 1900, p. 152 (Can- 

 tagallo and Novo Friburgo, Brazil), p. 203 (Euler's record). — Exjlee, 

 Rev. Mus. Paulista, vol. 4, 1900, p. 14 (descr. nest and eggs). — von 

 Ihering, Aves do Brazil, 1907, p. 334 (Iguape, Baurti, Alto da Serra, 

 Ubatuba, Itararg, and Ourinho, Brazil; range. — (?) Bertoni, Fauna 

 Paraguaya, 1913, p. 60 (Puerto Bertoni and Ihguasil, Paraguay). — 

 RiDGWAY, Bull. U. S. Nat. Mus., No. 50, vol. 2, 1902, p. 740, in text 

 (crit.). 



Siphia obscura ( !) Shabpe, Proc. Zool. Soc. London, 1881, p. 789 (" Borneo " ; 

 orig. descr.; type in coll. Brit. Mus.). 



Basileuterus rivularls (Editor), Bull. Brit. Orn. Club., vol. 41, 1920, p. 35 

 (syn.). 



Description. — Above dull dark citrine, passing into orange citrine 

 on the rump and upper tail-coverts; wings externally like the back; 

 tail similar but somewhat lighter in tone; pileum dark olive gray 

 medially, with lateral stripes brownish black, not very well defined, 

 indistinctly spreading out and tending to meet on the nape; narrow 

 superciliaries pale buffy; transocular stripe brownish black; auric- 

 ulars mottled buffy and dusky ; under surface white, strongly shaded 

 with buffy on the sides, crissum, and breast; under wing-coverts old 

 gold; feet pale (in skin). 



Some examples have a partiallj^ concealed buffy spot on the fore- 

 head. 



MeasurevMnts. — Seven specimens (not sexed) : Wing, 62-65 (aver- 

 age, 63.5) ; tail, 53-59 (56) ; bill, 12.5-13 (13) ; tarsus, 23-25 (23.5). 



Range. — Eastern Brazil, from Bahia south to Rio Grande do Sul 

 (and west to Paraguay?). 



Remarks. — In its general coloration and proportions Basileuterus 

 pivularis resembles B. mesoleucus, while in its pale and inconspicuous 



