146 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
1870, 196 (Chitra and Calovévora, Panama).—Frantzius, Journ. fiir Orn., 
1869, 306 (Costa Rica).—Ripeway, Proc. U. 8. Nat. Mus., vi, 1883, 415 
(Navarro, Costa Rica). 
Grallaricula flavirostris costaricensis CARRIKER, Ann. Carnegie Mus., vi, 1910, 630 
(Cariblanco de Sarapiquf and base of Volc4n de Turrialba, 2,000 ft., Costa 
Rica). 
[Grallaricula] flavirostris (not Grallaria flavirostris Sclater, 1858) SctaTER and 
Satvin, Nom. Av. Neotr., 1873, 76, part (Costa Rica; Ver4gua).—SHARPE, 
Hand-list, iii, 1901, 44, part (Costa Rica; Panam4). 
Grallaricula flavirostris ScLateR, Cat. Birds Brit. Mus., xv, 1890, 326, part (Buena 
Vista, Costa Rica; Calovévora and Cordillera de Tolé, Panamd4).—Satvin 
and Gopman, Biol. Centr.-Am., Aves, ii, 1892, 245, part (Barranca, Buena 
Vista, and Rio Sticio, Costa Rica; Chitra, Cordillera de Tolé, Calovévora, 
and Calobre, Panam4). 
(?) Grallaricula vegeta Banes,¢ Proc. New Engl. Zool. Club, iii, Jan. 30, 1902, 42 
(Caribbean slope of Volc4n de Chiriquf, 4,000 ft., Panam4; coll. E. A. and 
O. Bangs). 
Genus GRALLARIA Vieillot. 
Grallaria Viettiot, Analyse, 1816, 43. (Type, Roi des Fourmilliers Buffon=For- 
micarius varius Boddaert.) 
Mytoturdus Bots, Isis, 1826, 972. (Type, Formicarius varius Boddaert.) 
Myiotrichas Bors, Isis, 1831, 542. (Type, Formicarius varius Boddaert.) 
Colobathris’ GuoacEer, Hand- und Hilfsb. der Natiirg., 1842, 304. (New name 
for ‘‘Grallina’’=Grallaria Vieillot.) 
Chamezbates ¢ Bertoni, Aves Nuevas del Paraguay, 1901, 150. (Type, C. rufiven- 
tris Bertoni= Myiothera grallaria Lichtenstein.) 
Very large terrestrial Formicariide (length about 160-210 mm.) 
with the slender tarsus less than half as long as wing, tail less than half 
(usually only two-fifths) as long as wing, and plumage of upper parts 
more or less distinctly squamated with dusky. 
Bill shorter than head, stout, much deeper than broad at base, its 
width at loral antize decidedly less than its height at same point and 
equal to a little to considerably less than half the distance from nostril 
to tip of maxilla; culmen very indistinctly if at all ridged, gradually 
but rather strongly curved from base, the tip of maxilla distinctly 
but not abruptly uncinate; maxillary tomium very slightly concave, 
distinctly notched subterminally; mandibular tomium nearly straight 
or very faintly convex, with faint subterminal notch; gonys slightly to 
very faintly convex, very ascending terminally, not prominent basally. 
Nostril exposed, posteriorly in contact with loral feathering, obliquely 
broadly oval, with an internal tubercle or septum showing within 
upper posterior portion. Rictal bristles distinct but very slender; 
aT am not satisfied as to the distinctness of G. vegeta. The individual variation 
among Costa Rican specimens (of which, however, I have seen but few) is considerable, 
and I strongly suspect that a larger series of specimens would show the birds from 
western Panamdé to be inseparable. 
b See also Colobathris Cabinis, Wiegmann’s Archiv, 1847, i, 216. 
¢ Xayaé, on the ground; Pdry¢, one who treads or covers. (Bertoni.) ‘ 
