2006 ALLEN’S NATURALIST’S LIBRARY. 
stead of being pale yellow, like the corresponding age and sex 
of A. zigra, and having also the hair shorter and not so glossy. 
Distribution.—This Howler is known only from the virgin 
forests of the eastern and north-eastern portions of Guatemala. 
Mr. Osbert Salvin has given the following account of this 
species. ‘The AZycetes of Guatemala is commonly known as 
the ‘Mono.’ It is abundant throughout the virgin forests of 
the eastern portion of the Republic, but is unknown on the 
forest-clad slopes which stretch towards the Pacific Ocean. In 
the former region it is found at various altitudes over a wide 
expanse of country. I have heard its cry on the shores of the 
lake of Yzabal; and all through the denser forests of the 
valley of the River Polochic it is very common, from the steep 
mountain road which lies between the upland village of Purula 
and S. Miguel-Tucuru, and especially in the wilderness of un- 
inhabited forest, which stretches from Teleman to the lake of 
Yzabal. In the unbroken forest-country which occupies the 
whole of the northern portion of Vera Paz, from Coban and 
Cahabon to the confines of Peten, it is also abundant ; for 
seldom an hour passes but the discordant cry of the Mono 
strikes upon the ear of the traveller, as he threads the lonely 
path to Peten. The elevation of this district varies from 700 
to 3,000 feet, and the A/;e/es is found at all elevations. When 
travelling through the forest in 1862, I was dependent for the 
animal food, to supply my party of Indians, entirely upon my 
gun, and Monos contributed not a little to the larder. The 
Indians eat Monkey without demur, but the meat looks dark 
and untempting. For my own part I far preferred the delicate 
Tinamou or Curassow, a sufficient supply of which never failed 
for my own consumption. Perhaps there is no district in Vera 
Paz where Monos are more abundant than the mountains of 
