20d ALLEN'S NATURALIST'S LIBRARY. 



stead of being pale yellow, like the corresponding age and sex 

 of A. nigra, 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 Mycetes 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 Mycetes 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 rny 

 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 



