A taxonomic revision of Chotoy spinetail Schoeniophylax phryganophilus

Chotoy spinetail Schoeniophylax phryganophilus is widely distributed in southern and eastern South America. What was believed to be a geographically disjunct population was described, as S. p. petersi, from eastern Brazil, in the valley of the Rio São Francisco, in northern Minas Gerais and western Bahia, based on comparatively minor plumage characters (chiefly colour and strength of the streaking).