110 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
(Tucurrfqui).—FRantztvs, Journ. fiir Orn., 1869, 305 (Costa Rica).—ScLaTER, 
Cat. Birds Brit. Mus., xv, 1890, 280.—SaLvin and Gopmay, Biol. Centr.-Am., 
Aves, ii, 1892, 230, pl. 51, fig. 1—Carrixer, Ann. Carnegie Mus., vi, 1910, 
617 (Caribbean slope, 1,000-2,500 ft., Costa Rica; crit.; habits). 
[Myrmeciza] lemosticta ScLaTER and Satvin, Nom. Av. Neotr., 18738, 74. 
Myrmeciza lemosticta lemosticta Hettmayr, Novit. Zool., xiii, 1906, 348 (crit.). 
[Drymophila] lemosticta Sarre, Hand-list, iii, 1901, 34. 
Drymophila lemosticta CARRIKER, Ann. Carnegie Mus., v, 1908, 9, in text. 
Myrmeciza stictoptera Lawrence, Ann. Lyc. Nat. Hist. N. Y., viii, 1867, 132 
(Angostura, Costa Rica; coll. U. 8. Nat. Mus.); ix, 1868, 109 (do.).—FRant- 
zius, Journ. fiir Orn., 1869, 306 (Costa Rica).—CuERriz, Proc. U. S. Nat. 
Mus., xiv, 1891, 532 (San Carlos, Costa Rica; crit.).—Sanvin and Gopman, 
Biol. Centr.-Am., Aves, ii, 1892, 230. 
[Drymophila] stictoptera SHarPE, Hand-list, iii, 1901, 34. 
Drymophila stictoptera CARRIKER, Ann. Carnegie Mus., v, 1908, 9 (crit.). 
MYRMECIZA CASSINI (Ridgway). 
CASSIN’S ANTBIRD. 
Adult male-—Head and neck, all round, uniform slate-black or 
blackish slate; back, scapulars, rump, upper tail-coverts, tail, and 
secondaries plain bright mummy brown or mars brown; edge of 
wing white; lesser wing-coverts brownish black or blackish brown, 
each with a conspicuous apical spot of white;“ alula dusky brown, 
the outermost feather broadly edged with white; primary-coverts 
uniform dusky brown; primaries grayish brown basally passing ter- 
minally into light olive-brown, the outermost edged with white; 
under parts, except chin, throat, and under tail-coverts, plain slate- 
gray, somewhat paler posteriorly, where slightly tinged with fulvous; 
under tail-coverts light mummy brown; bill black; legs and feet 
light yellowish gray (in dried skin); wing, 69; tail, 42; culmen (bill 
defective); tarsus, 29; middle toe, 18.° 
Adult female?.—Upper parts as in the adult male, but brown of 
back, etc., much deeper (chestnut-brown); chin and most of throat 
uniform slate color; median portion of lower throat, chest, and 
breast chestnut, the remaining under parts slightly paler and duller 
(more russet); wing, 64; tail, 39; culmen (bill defective); tarsus, 26; 
middle toe, 18.° 
Immature male4—Similar to the supposed adult female, as de- 
scribed above, but brown of upper parts lighter and less castaneous 
(deeper, however, than in the adult male described), and general 
color of under parts much lighter (dull cinnamon-rufous on chest 
@ In the single specimen that I have been able to examine the middle and greater 
coverts are wanting. 
b One specimen (the type). 
¢ One specimen, from Turbo, Colombia. 
4 Described from no. 150,920, U.S. Nat. Mus., Cascajél (Coclé), Panam4; Heyde. 
