List of mammals of Paraguay

This is a list of the mammal species recorded in Paraguay. There are 151 mammal species in Paraguay, of which two are endangered, seven are vulnerable, and twelve are near threatened.
The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature:
Some species were assessed using an earlier set of criteria. Species assessed using this system have the following instead of near threatened and least concern categories:
Subclass: Theria.
Infraclass: Eutheria.
Order: Cingulata (armadillos).
The armadillos are small mammals with a bony armoured shell. They are native to the Americas. There are around 20 extant species.
Order: Pilosa (anteaters, sloths and tamanduas).
The order Pilosa is extant only in the Americas and includes the anteaters, sloths, and tamanduas.
Order: Primates.
The order Primates contains humans and their closest relatives: lemurs, lorisoids, monkeys, and apes.
Order: Rodentia (rodents).
Rodents make up the largest order of mammals, with over 40% of mammalian species. They have two incisors in the upper and lower jaw which grow continually and must be kept short by gnawing. Most rodents are small though the capybara can weigh up to .
Order: Lagomorpha (lagomorphs).
The lagomorphs comprise two families, Leporidae (hares and rabbits), and Ochotonidae (pikas). Though they can resemble rodents, and were classified as a superfamily in that order until the early 20th century, they have since been considered a separate order. They differ from rodents in a number of physical characteristics, such as having four incisors in the upper jaw rather than two.
Order: Chiroptera (bats).
The bats' most distinguishing feature is that their forelimbs are developed as wings, making them the only mammals capable of flight. Bat species account for about 20% of all mammals.
Order: Carnivora (carnivorans).
There are over 260 species of carnivorans, the majority of which feed primarily on meat. They have a characteristic skull shape and dentition.
Order: Perissodactyla (odd-toed ungulates).
The odd-toed ungulates are browsing and grazing mammals. They are usually large to very large, and have relatively simple stomachs and a large middle toe.
Order: Artiodactyla (even-toed ungulates).
The even-toed ungulates are ungulates whose weight is borne about equally by the third and fourth toes, rather than mostly or entirely by the third as in perissodactyls. There are about 220 artiodactyl species, including many that are of great economic importance to humans.
Infraclass: Metatheria.
Order: Didelphimorphia (common opossums).
Didelphimorphia is the order of common opossums of the Western Hemisphere. Opossums probably diverged from the basic South American marsupials in the late Cretaceous or early Paleocene. They are small to medium-sized marsupials, about the size of a large house cat, with a long snout and prehensile tail.