28 PASSERES 
1. Neopelma aurifrons (Wied). (Plate 1, Fig. 9.) 
Muscicapa aurifrons Wied, Beitr. Naturg. Brasil, Vol. 3, Abt. 2, p. 829 !1831) (Camamu in southern Bahia). 
Muscicapa luteocephala (nec Lesson 1830) Lafresnaye, May. Zool. 1833, Cl. 2, pl. 13 (no locality given, the type 
examined by me in the Paris Museum was obtained in Minas Geraés by Auguste de St Hilaire). 
Hab. Forest region of Southeast Brazil (southern parts of Bahia, Minas Geraés, Rio de Janeiro and 
S. Paulo). 
18. GENUS SAPAYOA HARTERT 
Sapayoa Hartert, Novit. Zool. Vol. 10, p. 117 (1993) (type of the genus : Sapayoa aenigma Hartert). 
Characters. This rather aberrant genus of the Pzpridiwe undoubtedly finds its nearest ally 
in Scotothorus from which it differs by its much broader and wider bill, more distinctly emargin- 
ate tail, and by the upper half of the much weaker and shorter tarsus being feathered. Bill 
short and stout, at the base broader than high, and abruptly attenuated towards the tip. 
Culmen strongly ridged as in Scotothorus, The hook of the upper mandible preceded by a slight, 
but distinct notch. Nostrils quite round. Rictal bristles more numerous as well as much stronger 
and stiffer than in Scotothorus. Fourth primary longest, third about 1/2 mm. shorter, fifth 
again 1/2 mm. shorter than the third; first primary of the length of the secondaries. Tail distinctly 
emarginate and at the same time slightly rounded; the outermost rectrix is shorter than the four 
following ones (which are equal in length), though still a little longer than the innermost. Feet 
very small and weak. Tarsus feeble, very short, and ocreate, the scales being so fused as to 
show hardly any division, Upper half of the tarsus feathered. Toes connected at the base, the 
outer and middle toe for their basal half, Under surface of the toes rough, being covered with 
small, roundish scutes, as in the species of Scotothorus. Feathers of the crown somewhat 
elongated, forming a slight crest. Structure of plumage and style of coloration as in Scotothorus. 
Upper parts uniform dull olive green, Quills dark brown, exteriorly margined with the colour 
of the back. Tail feathers dark brown with olive green edges. Lower surface much lighter and 
more yellowish green than the back, Inner webs of the remiges indistinctly edged with dull 
greenish buff. 
A single specimen, marked 9, in the Tring Museum. Nothing is known of its habits and 
nidification. 
Geographical Distribution. Rio Sapayo in Northwestern Ecuador. Monotvfic. 
1. Sapayoa enigma [artert. (Plate 1, Figs. 5, 8.) 
Sapayou aenigma Hartert, Novit. Zool. Vol. 10 p. 117 (1903) (N. W. Ecuador). 
19. GENUS LANITSOMA SwalInson 
Laniisoma Swainson, Fauna Bor. Amer. Vol. 2, Birds, p. 492 (1831) (type : « L. arcuatum, Paris 
Museum »). 
Synonym : Ptilochloyris Swainson, Classif. Birds, Vol. 2, p. 250 (1837) (type: « P. lunatus North 
Zool. Vol. 2, p. 492, Braz. B. pl. 95 »). 
Characters. Bill shaped as in Scofothorus, but rather larger. Subterminal notch 
very distinct. Nostrils round, open and exposed. Rictal bristles numerous, but rather soft. 
In the wing, the fourth primary is the longest; the third scarcely, the second and fifth 
