GRALLARIA. 241 
2. Grallaria mexicana. 
Grallaria guatemalensis, Scl. P.Z.S. 1856, p. 294'; 1859, pp. 866°, 883°; Sumichrast, Mem. 
Bost. Soc. N. H. i. p. 556*; La Nat. v. p. 248”. 
Grallaria mexicana, Scl. P. Z. 8. 1861, p. 381°; 1864, p. 1757; Cat. Birds Brit. Mus. xv. p. 313°; 
Sumichrast, La Nat. v. p. 248°. 
Graliaria ?, Sumichrast, Mem. Bost. Soc. N. H. i. p. 556”. 
Similis preecedenti, sed plerumque major ; subtus pallidior, abdomine fere albicante, maculis pectoralibus magis 
obviis. Long. tota 7-5, ale 5:1, caude 2:1, rostri a rictu 1-4, tarsi 2-1. (Descr. exempl. typ. ex Jalapa, 
Mexico. Mus. Brit.) 
Hab. Mexico, Valley of Mexico (Ze Strange, White"), Chimalpa (Ff. Ferrari-Perez),. 
Ajusco (W. B. Richardson), Alpine 1° and hot regions * of Vera Cruz, Moyoapam 1°, 
Cordova ®, Omealca®, Uvero® (Sumichrast), San Andres Tuxtla®, Potrero, 
Cordova (Sallé), Jalapa® (de Oca?), Playa Vicente (Loucard*), Omilteme in 
Guerrero (Mrs. H. H. Smith). 
We are not very confident of the distinctness of this form from G. guatemalensis, as 
some Mexican specimens approach those of Guatemala more nearly in size than the 
type, which appears to be an exceptionally large example. The plumage of the 
underside of the former seems to be always paler in colour, especially on the middle 
of the abdomen, which is nearly white in the more northern bird; but our difficulty in 
deciding this point is increased from the limited series of specimens before us, and 
several of those we have are young birds and therefore of no use for comparison. For 
the present we keep all the Mexican birds under the title G. mexicana. 
Sumichrast 1°, as already stated, thought that two species of this form of Grallaria 
are to be found in the State of Vera Cruz; cone he found at an elevation of upwards 
of 8000 feet above the sea, the other in the hot country at a much lower level. This 
difference of elevation in the range of this Grallaria does not, we think, imply much, 
as G. guatemalensis is found within the same range of elevation without showing any 
difference in size or colour. | 
G. mexicana is chiefly known as a resident in the forests of the State of Vera Cruz, 
but it also occurs in the Valley of Mexico and in the State of Guerrero. We have 
young birds still possessing much of their first spotted plumage which were shot at 
Omilteme (alt. 8000 feet) in the Sierra Madre del Sur, Guerrero, in July, and at Ajusco 
in the Valley of Mexico, in September. 
8. Grallaria princeps, (Tab. LII.) 
Grallaria guatemalensis, Salv. P. Z. 8. 1867, p. 146+. 
Grallaria princeps, Scl. & Salv. P. Z. S. 1869, p. 418°; Salv. Ibis, 1869, p. 312%; P. Z. 8. 1870, 
p- 196*; Zeledon, An. Mus. Nac. Costa Rica, 1887, p. 115°; Scl. Cat. Birds Brit. Mus. 
xv. p. 814°, | 
BIOL. CENTR.-AMER., Aves, Vol. II., March 1892. 31 
