Adult (sex not determined). — Length (skin), about 125; wing, 60; tail, 59 (middle rectrices imperfect); exposed culmen, 11; tarsus, 18; middle toe, 14.[1]
Eastern Panamá (Natá, Coclé).
- Synallaxis albescens hypoleuca Ridgway, Proc. Biol. Soc. Wash., xxii, April 17, 1909, 73 (Natá, Coclé, Panamá; coll. U. S. Nat. Mus.).
Genus PSEUDOCOLAPTES Reiehenbach.
- Pseudocolaptes Reichenbach, Handb. Spec. Orn., 1853, 209. (Type, P. semicinnamomeus Reichenbach = Anabates boissonneautii Lafresnaye.)
- Otipne[2] Cabanis and Heine, Mus. Hein., ii, Aug., 1859, 30. (Type, Anabates boissonneautii Lafresnaye.)
Large scansorial Furnariidæ (length about 200 mm.) with narrow (slit-like), broadly operculate nostrils, wedge-shaped compressed bill, acuminate, rigid-shafted rectrices, and with a tuft of elongated soft (white or buff) feathers on each side of neck.
Bill decidedly shorter to longer than head, nearly elongate-cuneate in lateral profile, much compressed, its width at loral antiæ decidedly less than its depth at same point and equal to less than one-third the distance from nostril to tip of maxilla, the latter scarcely if at all decurved; culmen rather indistinctly ridged anteriorly, the mesorhinium distinctly flattened, sometimes lightly arched above nostrils, and thence to tip nearly straight or but slightly decurved; maxillary tomium strongly deflected basally, the anterior half straight or very faintly concave, without trace of subterminal notch; the mandibular tomium also straight (or very nearly so) and without trace of notch; gonys straight, slightly ascending terminally, the mandibular rami sometimes strongly deflected basally. Nostril exposed, posteriorly in contact with latero-frontal feathering, very narrow (slit-like), broadly operculate, the posterior portion of the operculum invaded by the short feathering of the latero-frontal antiæ. Rictal bristles wanting, and feathers of chin, etc., without terminal setæ. Wing large and pointed, with the longest primaries exceeding secondaries by more than length of bill from nostril; sixth, seventh, and eighth primaries longest and nearly equal, the tenth (outermost) more than two-thirds as long as the longest, the ninth intermediate between fourth and fifth. Tail about six-sevenths as long as wing, graduated for about one-fourth its length (graduation much less than length of tarsus), the rectrices (12) broad, acuminate, with rigid but slender shafts. Tarsus about one-fourth as long as wing, stout, distinctly scutellate (endaspidean); middle toe, with claw, decidedly shorter than tarsus; outer toe, without claw, reaching to beyond middle of
subterminal phalanx of middle toe, the inner toe slightly, but distinctly,
