80 TROGLODYTIDA. 
and again in 1867 ° that we were unable to distinguish it from Henicorhina leucosticta : 
and from this time we have always looked upon the species as indivisible. Prof. 
Baird? 16, in his ‘ Review of American Birds,’ took the opposite view and granted each 
full specific rank; but when the characters he relied upon, such as the greater purity 
of the white colour of the under surface in the southern race, its smaller size, and the 
difference of the number and size of the spots on the shoulders and neck, are examined 
by the light of a large series of specimens, it will be seen that they cannot be considered 
of specific value. 
Southern Mexico seems to be the limit of the northern range of H. leucosticta, where 
it is doubtless restricted to the lowland hot forests of the district. Prof. Sumichrast 
indeed speaks of it as found in the hot, temperate, and alpine regions of the State of 
Vera Cruz; but we have no doubt, from our knowledge of the ranges of this species 
and of H. lewcophrys in Guatemala, that he here has looked upon both as one, and that 
the birds noticed by him in the alpine region were of the latter species. In Guate- 
mala we only found it in the low-lying forests of Northern Vera Paz, and also on the 
Pacific side of the mountains in the forests covering the slopes of the volcanos of 
Agua and Fuego. It is thoroughly Wren-like in its restless movements, keeping to 
the undergrowth of the virgin woods. 
2. Henicorhina leucophrys. 
Troglodytes leucophrys, Tsch. Arch. f. Naturg. J ahrg. x. i. p. 2837. 
Heterorhina leucophrys, Baird, Rev. Am. B. i. p. 118. 
Cyphorhinus leucophrys, Lawr. Ann. Lyc. N. Y. ix. p. 92°. 
Henicorhina leucophrys, Salv. P. Z.S. 1870, p. 181+. 
Troglodytes guttatus, Hartl. Syst. Verz. d. Ges. Mus. p- 28°, 
Cyphorhinus prostheleucus, Salv. & Scl. Ibis, 1860, p- 272° (nec Sclater). 
Heterorhina prostheleuca, Sumichrast, Mem. Bost. Soc. N. H. i. p. 545" (partim). 
Cyphorhinus griseicollis, Scl. & Salv. Ibis, 1860, p. 397° (nec Lafr.). 
Heterorhina griseicollis, Baird, Rev. Am. B. i. p. 117° (nec Lafr.), 
H. leucosticte similis, sed corpore subtus plumbeo nec albo et tectricibus alarum immaculatis distinguenda. 
(Deser. exempl. ex Volean de Agua. Mus. nostr.) 
Hab. Mexico, Jalapa (de Oca®), Moyoapam, Vera Cruz (Sumichrast "); GUATEMALA, 
Volcan de Agua®®, Volcan de Fuego, Totonicapam (0. 8. & F. D.G.); Cogra Rica, 
San José (v. Frantzéus®), Volcan de Trazu (Rogers); Panama, Mina de Chorcha, 
Cordillera del Chucu, Chitra, Calobre, Calovevora (Arcé *).—Cotomp1a; VENEZUELA; 
Ecvapor; Perv}; Bonrvia. 
Though described in 1844 by Tschudi from specimens obtained by him in Peru, 
where it has since been found by Jelski *, this species was many years before it found 
* Taczanowski, P. Z. 8, 1874, p. 504. 
