exterminated in the Pacific coast lowland forests of Guatemala, either by overhunting or 
disease. Along the Rfo Polochic, between 1910 and 1915, almost the whole population, human 
as well as monkey, was wiped out by yellow fever, By the early 1930's recovery was almost 
complete, and monkeys are now very abundant in this region. 
Remarks.--The especies is represented in Guetemala by the following races: In Petén, pigra; 
in the Caribbean lowlands, villosa; along the Pacific coast, palliata; in the mountains of 
Quiché and Alta Vera Paz, an undetermined race, 
19. 
Names,--Latin: Cebus capucinus 
Guatemalan: Mico capuchino 
English: Capuchin monkey 
Description.-~A medium sized monkey with long,hairy tail, relatively short limbs, and short 
fur, Coloration white on the face, chest and shoulders and black on the remainder of the 
body. 
Disti ish acterist e~-Medium size, white face contrasting with black of bedy, 
Measurements.-~Average measurements are: total length, 880 mm.; tail, 480 mm.; hind foot, 
130 mm.; ear, 35 m, 
General distribution.--Belize, south through Central America to northern South America, 
istr ion in Guatem --No specimens have ever been taken in the Remblic, but it has 
been reported from the Lake Izabal district, and should occur as well in the heavy forests 
along the lower perts of the Rios Sarstun, Polochic, and Motagua, 
Habitat.--Heavy forests. 
Habits,--Similar to those of the howler, but less fortunate in vocal ability, Fruite are 
its main items of food, supplemented with insects, birds!’ eggs and young birds, 
Hunting.--See Alovatta palliata (No. 18). 
e--The race in Guatemala is probably Jimitator. 
20, 
Names,--Latin: Ateles geoffrovi 
Guatemalan: Mico, 
English: Spider monkey 
Description.--A large, slender monkey with a long prehensile tail; long slender limbs; no 
thumb on forefeet; thin stringy hair; coloration brownish black above, and whitish below, 
Disti shing c teristics.--Very long limbs and tail; only four digits on forefeet, 
Measurements.--Average measurements are; total length, 1,150 mm; tail 700 mm; hind foot, 
160 mm; ear, 20 mm; weight, 18 1b. (male), 16 lb. (female). 
General distribution.~-Bouthern México, south through Central America to northern Colombia. 
Distribution in Guatemala,--Formerly occurred throughout the more humid forest regions, in- 
cluding the highlands, where it was recorded on several of the volcanoes, Now found only 
in Petén, in the lowland foreate of both coasts and in the mountains of Quiché and Alta Vera 
Paz, 
Habitat.--Large forests, 
Habits,--The spider monkey is the most arboreal species present in Guatemala, and is one of 
the most agile climbers on this continent. It travele entirely through the tree tops, some- 
times making considerable speed, It uses its tail effectively as a fifth hand and often 
hangs by it while reaching for fruite, ite main item of food. It is adept at making long 
leaps from tree to tree, or from one part of a tree to another, 
Huntingw--See Alovatta palliata (No. 18). 
Remarks.-~-The following geographic races occur in Guatemala: yucatenensis in Petén, pan in 
the mountains of Quiché and Alta Vera Pez, and vellerosus in the lowland forests on both coasts, 
Zl. 
Names.--Latin: Seiurus deppei 
Guatemalan; Ardilla 
English: Deppe squirrel 
Description.--A small squirrel with relatively short tail, reddish brown coloration on the 
upper parts, and whitish on the underparts, 
Distinguishing characteristics.~-Smail size; wniform reddish color of upper parte. 
Measurementsa.--Guatemalan specimens from a dozen scattered localities average: total length, 
382 mm.; tail, 162 mn,; hind foot, 55 mm.; ear, 18 ma, 
150 
