Resources

Books

Nowak, R. M. "Rodentia: Ambrocomidae Chinchilla Rats or Chinchillones." In Walker's Mammals of the World. Vol. 2. Baltimore: Johns Hopkins University Press, 1991.

Nowak, R. M., and J. L. Paradiso. Walker's Mammals of the World. Baltimore: Johns Hopkins University Press, 1983.

Vaughn, T. A., J. M. Ryan, and N. J. Czaplewski. Mammalogy. 4th ed. Philadelphia: Saunders College Publishing, 2000.

Periodicals

Eisenberg, J. F. "The Function and Motivational Basis of Hystricomorph Vocalizations." Symposium of the Zoological Society of London 34 (1974): 211-247.

Fulk, G. W. "Notes on the Activity, Repoduction, and Social Behavior of Octodon degus." Journal of Mammalogy 57 (1976): 495-505.

Kuch, M., N. Rohland, J. L. Betanourt, C. Latorre, S. Steppens, and H. N. Poinar. "Molecular analysis of a 11700-year-old Rodent Midden from the Atacama Desert, Chile." Molecular Ecology 11: 913-924.

Miller, S. D., J. Rottmann, K. J. Raedeke, and R. D. Taber. "Endangered Mammals of Chile: Status and Conservation." Biological Conservation 25: 335-352.

"Contributions to the Mammalogy of Chile." Mammalia 43: 339-376.

Weir, B. J. "Reproductive Characteristics of Hystricomorph Rodents." Journal of Mammalogy 57: 495-505.

Brian Douglas Hoyle, PhD

Class Mammalia Order Rodentia Suborder Hystricognathi Family Echimyidae

Thumbnail description

Rat- to cat-sized rodents with large heads, and (in many species) spines in the fur of their backs; even species lacking spines, however, have another echimyid character: the presence of only four toes and a vestigial pollex (thumb)

Size

Head and body 4.13-18.9 in (10.5-48.0 cm); tail 0.2-16.5 in (0.5-42.0 cm); weight 0.46-2.9 lb (210-1,300 g)

Number of genera, species

20 genera; 78 species

Habitat

Rainforests, savannas, agricultural habitats, swamps, parks, and beach vegetation

Conservation status

Extinct: 3 species; Critically Endangered: 1 species; Vulnerable: 5 species; Lower Risk/Near Threatened: 9 species; Data Deficient: 5 species

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