440 Mr. P. L. Sclater on the Genus Grallaria. 
nigris frequenter transvittatis : long, tota 9’0, alse 6 - 0, 
caudse 2*6, tarsi 2*7. 
Hab. iEquatoria. 
Obs. Sp. a prsecedente colore dorsi, fasciis corporis subtus 
crebrioribus et crassitie majore diversa. 
Until I had actually seen the typical example of this fine 
Ant-Thrush, which has been most liberally intrusted to my 
examination by the authorities of the Smithsonian Institu¬ 
tion, I was, I confess, rather unwilling to believe in its dis¬ 
tinctness from its near ally, G. squamigera , which actually 
traverses Ecuador, and extends into Peru and Bolivia. But 
I was quickly convinced at the first sight of the bird. 
The only known example of this species was obtained in 
Ecuador by Mr. John Akhurst. It bears the number 35101 
in the Smithsonian Catalogue. It is not known more exactly 
where the specimen was procured. 
Sect. B. Grallaria reges. 
3. Grallaria mexicana. 
Grallaria guatemalensis , Sclater, P. Z. S. 1856, p. 294, et 
1858, p. 280 (pt.). 
Grallaria mexicana , Sclater,P.Z. S. 1861 ,p. 381,1863,p. 175, 
et Cat. A. B. p. 191; Scl. et Salv. Nom. Av. Neotr. p. 75. 
Suprk olivaceo-brunnea, nucha cineracea, plumis omnibus 
margine angusto nigro preeditis; rectricibus externe et 
cauda tota rufis: subtus pallide fulva, in gutture et in 
ventre medio albicans, torque colli interrupto nigro ; 
subalaribus et remigum marginibus internis pallide cas- 
taneis: long, tota 7*5, alse 5*1, caudse 2*0, tarsi 2*1. 
Hab. Mexico merid. terra calida. 
Mus. P. L. S. et S.-G. 
The larger size and lighter colour below induced me to 
separate the Mexican from the Guatemalan form of this 
species; but I rather doubt whether the separation will be 
ultimately maintainable, as there is considerable variation in 
G. guatemalensis when a large series is examined. 
rj ~ 4. Grallaria guatemalensis. 
Grallaria guatemalensis , Prevost, Zool. Voy. Venus, Ois. 
