BIRDS OF NORTH AND MIDDLE AMERICA. 143 
Adult male.—Length (skins), 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), 166-181 (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 Sicio; Rio Sicsola; Jiménez; Carrillo). 
Pittasoma michleri zeledont Ripaway, Proc. U. 8. Nat. Mus., vi, Apr. 11, 1884, 
414 (Rio Sticio, Costa Rica; coll. U.S. Nat. Mus.).—Zrtepon, Anal. Mus., 
Costa Rica, i, 1887, 115 (Jiménez, Costa Rica).—CarrikER, Ann. Carnegie 
Mus., vi, 1910, 626 (Caribbean foothills of Costa Rica, to about 2,500 ft.; 
habits). 
Pittasoma zeledoni ScuatER, Cat. Birds Brit. Mus., xv, 1890, 310.—Sanvin and 
Gopman, Biol. Centr.-Am., Aves, ii, 1892, 238. 
[Pittasoma] zeledoni SHarre, Hand-list, iii, 1901, 40. 
Genus GRALLARICULA Sclater. 
Grallaricula ScuateR, Proc. Zool. Soc. Lond., 1858, 283. (Type, Grallaria 
Jflavirostris Sclater.) 
Small Formicariide (length about 90-115 mm.) with very 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 profile, its width at loral antiz decidedly greater than its 
depth at same point and equal to about three-fifths the distance from 
nostril to tip of maxilla; culmen distinctly ridged, gradually and 
rather strongly decurved from near base, the tip of maxilla distinctly 
but 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 basally. Nostril partly ex- 
posed, partly hidden by antrorse feathering of loral antiz, small, longi- 
tudinal, narrowly oval or elliptical, overhung by a rather broad exten- 
sion of the membraneous integument of the nasal fosse. Rictal 
bristles conspicuously developed, nearly (sometimes quite) as long as 
bill, the feathers of chin, malar antiz, and loral region with distinct 
terminal sete. Wing rather long, with longest primaries much longer 
than secondaries; sixth and seventh primaries 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 
@ Three specimens. 
