210 -FFORMICARIIDA, 
varia), as its habits resemble those of that bird—running along the upper and lower 
sides of the branches, frequently with its head downwards. Salmon describes the nest 
as made of very fine roots and grass, and placed in low bushes, a slight network 
hanging at the end of a thin bough, very deep, and suspended between a fork with the 
natural leaves of the shrub or bush above to protect it from the rain. The eggs are 
white ® Stolzmann found MZ. surinamensis in small numbers at Yurimaguas in Peru 
‘ living in the lofty trees like the small species of Tyrannide, and accompanying the 
bands of wandering birds !”. 
B. Rostrum robustius, cauda longior, ptilosis haud striata. 
. Gula albo maculata. . 
2. Myrmotherula fulviventris 
Myrmotherula ornata, Cassin, Pr. Ac. Phil. 1860, p. 190, partim (cf. Salv. Ibis, 1874, p. 311)’. 
Myrmotherula, sp. no. 216, Lawr. Ann. Lyc. N. Y. vii. p. 325 
Myrmotherula fulviventris, Lawr. Ann. Lyc. N. Y. vii. p. 468°; ix. p. 108*; Scl. & Salv. P. Z. S. 
1864, p. 356°; 1879, p. 525°; Wyatt, Ibis, 1871, p. 8317; Salv. Ibis, 1874, p. 311°; Ridgw. 
Pr. U.S. Nat. Mus. x. p. 590°; Zeledon, An. Mus. Nac. Costa Rica, 1887, p. 115"; Scl. 
Cat. Birds Brit. Mus. xv. p. 234 " 
Supra obscure brunnea fere unicolor, cauda vix fulvescentiore; tectricibus alarum nigris cervino terminatis : 
subtus fulva, gula alba plumis singulis basi nigra, subalaribus et remigibus interne pallide cervinis: rostro 
et pedibus nigricanti-plumbeis, mandibula pallida. Long. tota 4:0, alee 2:0, caude 1:25, rostri a rictu 
0°65, tarsi 0°65. 
© mari similis, sed gula quam pectus vix pallidiore, hand alba, plumarum basi nigra. (Descr. maris et feminz 
ex Panama. Mus. nostr.) 
Hab. Honpuras, ‘Segovia river (Townsend®); Costa Rica, Angostura (Carmiol +), 
Pacuare, Jimenez (Zeledon 1°); Panama, Veraguas (Arcé), Lion Hill Station 
(M‘Leannan ? *°), R. Truando ( Wood *).—CotomB1a® 7; Ecuador}. 
The true position of this species as a distinct bird was not recognized at first. Cassin 
referred specimens obtained during Lieut. Michler’s expedition to Darien with doubt to 
M. ornata!. Mr. Lawrence hesitated to describe the first specimens sent him: by 
M‘Leannan 2, but afterwards gave them the name now borne by the species 8, which 
proves to be quite distinct. It belongs to a section of the genus which has the throat 
of the male spotted with white, but is the only known form having a fulvous breast 
and brown back. On the Isthmus of Darien this bird is said by Mr. W, 8. Wood to be 
found at Camp Toucey on the Truando and at Turbo, where it was observed in high 
trees, and also occasionally in the bushes, being very active and constantly in motion !. 
The range northwards of JZ. fulviventris from the Isthmus of Panama is extensive, 
for though it does not reach Guatemala, it has been traced’to the northern side of the 
valley of the Segovia river in Honduras, where Mr. Townsend obtained two specimens 8. 
It is not apparently a common bird either in Costa Rica or the State of Panama beyond 
the line of railway, as none of Arcé’s earlier collections contained examples. 
