140 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



color, the inner webs with a spot of fawn color (not white), and greater 

 wing-coverts tipped with clear fawn color.*^ 

 Nicaragua (Santo Domingo, Chontales). 



Rhopoterpe stictoptera Salvin, Bull. Brit. Orn. Club, no. vi, March 1, 1893, 

 p. xxxii; Ibis, 6th ser. v, no. 18, April, 1893, 264 (Santo Domingo, 

 Chontales, Nicaragua; coll. Salvin and Godman). 



[Rhopoterpe] stictoptera Sharpe, Hand-list, iii, 1901, 31. 



Genus PITTASOMA Cassin. 



Pittasoma Cassin, Proc. Ac Nat. Sci. Phila., 1860, 189. (Type, P. michleri 



Cassin.) 

 Pittisovm (emendation) Sclater and Salvin, Proc. Zool. See. Lond., 1864, 357. 

 Calobamonb Heine, in Heine and Reichenow, Nomencl. Mus. Hein. Orn., 1890, 



123. (New name for Pittasoma Cassin, on grounds of purism.) 



Very large Formicariidse (length about 160-180 mm.) with exces- 

 sively short tail (shorter than commissure, only one-third as long as 

 the short, much-rounded wing), stout, distinctly uncinate, bill, very 

 long tarsi (half as long as wing), and conspicuously variegated 

 coloration. 



Bill nearly as long as head, stout, rather broad and slightly depressed 

 basally, its width at loral antise much greater than its height at same 

 point and equal to half the distance from nostril to tip of maxilla, or 

 slightly more; culmen distinctly but not sharply ridged, slightly 

 curved from near base to near tip, where more strongly decurved, the 

 tip of maxilla strongly uncinate; maxillary tomium straight or very 

 faintly concave, distinctly notched subterminally; mandibular 

 tomium faintly convex, slightly but distinctly notched subterminally; 

 gonys strongly convex and prominent basally, nearly straight for 

 most of its length, ascending terminally, the tip of the mandible 

 fo lining an obtuse, slightly recurved, point. Nostril exposed, poste- 

 riorly in contact with loral feathering, longitudinally oval, with a 

 thin, pointed, internal tubercle or splint in upper posterior portion. 

 Rictal bristles present but short and inconspicuous. Wing rather 

 short, much rounded, tlie longest primaries scarcely if at all extending 

 beyond secondaries; fifth and sixth, or fourth, fifth, and sixth, pri- 

 maries longest, the tenth (outermost) less than two-thirds as long as 

 the longest, the ninth much shorter than secondaries. Tail exces- 

 sively short, shorter than commissure, only one-third as long as wing, 

 the rectrices relatively broad. Tarsus much longer than commissure, 

 half as long as wing, stout, rounded posteriorly, distinctly scutellate, 

 the plantar scutella indistinct (fused on upper half or more) ; middle 

 toe, with claw, about three-fourths as long as tarsus; outer toe, with- 

 out claw, reaching to a little beyond subterminal articulation of mid- 



a Free translation of the original Latin diagnosis. 

 bKaXoc, beautiful; ^dpLa i^wa), a step, pace. 



