Xenicopsoides subgenus nov.
Characters.—Similar to Xenicopsis Cabanis, but with much less graduated and relatively shorter tail (tail less than ⅚ of wing), relatively shorter tarsus and plain under parts. (Type Anabazenops variegaticeps Sclater).
This new subgenus includes the following: Anabazenops variegaticeps Sclater; Anabales temporalis Sclater; Philydor montanus Tschudi; Anabates striaticollis Sclater; Xenicopsis anxius Bangs and Philydor venezuelensis Hellmayr.
Euphilydor subgenus nov.
Characters.—Similar to Philydor Spix, but shape of bill different, the terminal half of under mandible (gonys) being decidedly elevated (nearly as in Xenicopsis) and the end of the culmen more curved. (Type Philydor lichtensteini Cabanis and Heine).
This group comprises the following forms: Philydor lichtensteini Cabanis and Heine; Anabates amaurotis Temminck and Anabates dimidiatus Pelzeln.
Synallaxis frontalis juæ subsp. nov.
Type from Jua, near Iguatu, Ceara, Brazil. Adult male, No. 45618, Field Museum of Natural History. Collected by R. H. Becker, September 2, 1913.
Characters.—Similar to S. f. frontalis Pelzeln, but differs chiefly in the brighter and more cinnamon rufous coloration of the crown, wings and tail. The primaries have the outer webs bright cinnamon rufous nearly to the tips, quite different than in S. f. frontalis.
Measurements.—Wing, 55; tail, 80 mm.
Synallaxis gujanensis huallagæ subsp. nov.
Type from Lagunas, Lower Huallaga River, Peru. Adult male, No. 50561, Field Museum of Natural History. Collected by M. P. Anderson, October 12, 1912.
Characters.—Similar to S. gujanensis inornata Pelzeln from the Rio Madeira region, Brazil, but differs in having the upper parts and most of under parts (chest and sides) darker (less buffy brown and more grayish brown), and sides of head and sides of throat brownish gray (not pale buffy as in allied forms); coloration of wings and tail darker and more chestnut brown, wing averaging longer.
Measurements.—Wing, 65; tail, 70; culmen, 14 mm.
Synallaxis peruviana sp. nov.
Type from Moyobamba, northern Peru. Female, No. 50564, Field Museum of Natural History. Collected by W. H. Osgood and M. P. Anderson, July 15, 1912.
Characters.—Back and rump grayish olive brown, the feathers of the nape and upper back with narrow whitish shafts; crown feathers with tawny shaft streaks (giving a streaked appearance to the crown) most pronounced on the forehead; under parts tawny buff shading into olive buff on the belly and flanks; breast feathers with blackish streaks and dots; sides of the head streaked with tawny buff and blackish; remiges with outer webs and greater portion of inner webs rufous; terminal third of the inner webs blackish; tail chestnut rufous; under wing coverts bright ochraceous tawny.
Measurements.—Wing, 64; tail, 55; culmen, 13 mm.
Remarks.—This new form is apparently not very closely allied to any known species. It somewhat resembles S. stictothorax from Ecuador and extreme northwestern Peru in size and in having the sides of the neck, and breast, streaked with blackish, but it is otherwise very different.
Synallaxis semicinerea pallidiceps subsp. nov.
Type from Serra Baturite, Ceara, N. E. Brazil. Adult male, No. 45627, Field Museum of Natural History. Collected by R. H. Becker, July 16, 1913.
Characters.—Similar to S. s. semicinerea (Reichenbach) from Bahia, but differs in having the general plumage decidedly paler; crown between drab gray and light drab becoming olive drab on the nape; back cinnamon rufous; wings and tail cinnamon rufous, but somewhat more distinctly rufous and slightly less cinnamon than the back; under parts like S. s. semicinerea, but more tinged with isabella color; flanks and under tail coverts more tinged with olive buff.
Measurements.—Wing, 67; tail, 77; culmen, 14 mm.
Synallaxis scutata neglecta subsp. nov.
Type from Jua, near Iguatu, Ceara, Brazil. Adult female, No. 50562, Field Museum of Natural History. Collected by R. H. Becker, August 28, 1913.
Characters.—Similar to S. s. scutata Sclater from Bahia, Goyaz and Matto Grosso (Chapada), but differs in having the rufous coloration very much paler (cinnamon rufous, not chestnut rufous as in scutata scutata); crown brownish gray, superciliary stripe behind whitish (not tawny buff); sides of throat, bordering the black patch, buffy white (not rufous buff); under parts much more whitish; wings and tail near cinnamon rufous.
Measurements.—Wing, 54; tail, 68; bill, 13 mm.
Pseudocolaptes boissoneautii oberholseri subsp. nov.
Type from Quito, Ecuador. Adult male, No. 30945, United States National Museum, Washington, D. C. Collected by C. R. Buckalew.
Characters.—Similar to P. b. boissoneautii (Lafresnaye) from Bogota, but differs in having the throat and ear tufts quite white and the “scale” marking on the breast larger and more pronounced; belly and flanks more olive rusty; tail darker and more brownish chestnut rufous.
Measurements.—Wing, 107; tail, 99; bill, 20 mm.
Remarks.—An immature specimen from Nanegal, Ecuador, in the collection of the Museum of Comparative Zoölogy has the whole top of the head blackish and the belly and flanks bright rusty rufous. A specimen labelled Guayaquil (locality probably not correct) in the U. S. National Museum, agrees fairly well with the type, but has the sides of the belly and flanks more olive rufous. I have dedicated this new form to Dr. Harry C. Oberholser.