BIRDS OF NORTH AND MIDDLE AMERICA. 143 



Adult 7nale. —Length (sldns), 175-179 (177); wing, 99.5-115 

 (105.1); tail, 31.5-34 (33); culmen, 29-31 (30); tarsus, 50-51.5 

 (50.7); middle toe, 28.5-31 (30.2).« 



Adult female.— Length (skins), 166-lSl (172); wing, 97.5-100.5 

 (98.7); tail, 33.5-36 (34.3); culmen, 27-30 (28.5); tarsus, 46-52 

 (48); middle toe, 29-31 (30).« 



Eastern Costa Rica (Rio Sucio; Rio Sicsola; Jimenez; Carrillo), 



Pittasoma michleri zeledoni Ridgway, Proc. U. S. Nat. Mus., vi, Apr. ]1, 1884, 

 414 (Rio Sucio, Costa Rica; coll. U. S. Nat.llus.). — Zeledon, Anal. Mus., 

 Costa Rica, i, 1887, 115 (Jimenez, Costa Rica). — Carriker, Ann. Carnegie 

 Mus., vi, 1910, 626 (Caribbean foothills of Costa Rica, to about 2,500 ft.; 

 habits). 



Pittasoma zdcdoni Sclater, Cat. Birds Brit. Mus., xv, 1890, 310. — Salvin and 

 GoDMAN, Biol. Centr.-Am., Aves, ii, 1892, 238. 



[Pittasoma] zeledoni Sharpe, ITand-list, iii, 1901, 40. 



Genus GRALLARICULA Sclater. 



Grallaricula Sclater, Proc. Zool. Soo. Loud., 1858, 283. (Type, Grallaria 

 Jlavirostris Sclater.) 



Small Formicariid* (length about 90-115 mm.) with A'ery short, 

 emarginate tail (only about one-third as long as wing), short and 

 broad but rather thick bill, long and conspicuous rictal bristles, 

 rather long, slender tarsi (about one-third as long as wing), the color 

 plain brown or olive above, whitish or tawny below, usually more or 

 less streaked or squamated with black or dusky^sometimes plain 

 gray, with head and neck chestnut. 



Bill much shorter than head, rather stout, broadly wedge-shaped 

 in vertical profde, its width at loral antias decidedly greater than its 

 depth at same point and equal to about three-fiftlis the distance from 

 nostril to tij) of maxilla; culmen distinctly ridged, gradually and 

 rather strongly decurved from near base, the tip of maxilla distinctly 

 l)ut rather minutely uncinate; maxillary tomium slightly concave, dis- 

 tinctly but minutely notched subterminally; mandibular tomium 

 faintly convex (at least distally), faintly notched subterminally; gonys 

 faintly or gently convex, not prominent basall3^ Nostril parti}'- ex- 

 posed, partly hidden b}^ antrorse feathering of loral antia?, small, longi- 

 tudinal, narrowly oval or elliptical, overhimg by a rather broad exten- 

 sion of the membraneous integument of the nasal fossas. Rictal 

 bristles conspicuously developed, nearl}^ (sometimes quite) as long as 

 bill, the feathers of chin, malar antiiv, and loral region with distinct 

 terminal setoB. Wing rather long, with longest ])rimaries much longer 

 than secondaries; sixth and seventh ]n-imaries longest, the tenth 

 (outermost) two-thirds as long as longest, or slightly more, the ninth 

 decidedly longer than secondaries. Tail about one-third as long as 



O' Three specimens. 



