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Muskrat skeleton Muskrat skull An adult muskrat is about 40–70 cm (16–28 in) long, half of that length being the tail, and weighs 0.6–2 kg ( 1 + 1 ⁄ 4 – 4 + 1 ⁄ 2 lb). [ 13 ] That is about four times the weight of the brown rat ( Rattus norvegicus ), though an adult muskrat is only slightly longer.
The muskrat or common muskrat [1] (Ondatra zibethicus) is a medium-sized semiaquatic rodent native to North America and an introduced species in parts of Europe, Asia, and South America. Quick Facts Conservation status, Scientific classification ...
The round-tailed muskrat is a semiaquatic and nocturnal species native to the southeastern United States. [3] Limited sexual dimorphism is seen among round-tailed muskrats, with female adults weighing an average of 262 grams (9.2 oz) and male adults measuring at a slightly heavier average of 279 grams (9.8 oz). [3]
The round-tailed muskrat (N. alleni) is only found in Florida and adjacent Georgia, just outside of the range of O. zibethicus. Some authorities place both genera in different tribes (Ondatrini for Ondatra , Neofibrini for Neofiber ), but the American Society of Mammalogists places both in Ondatrini, and some molecular evidence supports a close ...
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The cricetids are small mammals, ranging from just 5–8 cm (2.0–3.1 in) in length and 7 g (0.25 oz) in weight in the New World pygmy mouse up to 41–62 cm (16–24 in) and 1.1 kg (2.4 lb) in the muskrat. The length of their tails varies greatly in relation to their bodies, and they may be either furred or sparsely haired.
Megalomys desmarestii, also known as the Martinique muskrat, [2] Desmarest's pilorie, [3] or the Martinique giant rice rat, [1] is an extinct rice rat from Martinique in the Caribbean. Description [ edit ]
Megalomys audreyae, known as the Barbudan (?) muskrat [3] or the Barbuda giant rice rat, [4] is an extinct oryzomyine rodent from Barbuda in the Lesser Antilles.Described on the basis of a single mandible (lower jaw) with the first molar missing and an isolated upper incisor, both of uncertain but Quaternary age, it is one of the smaller members of the genus Megalomys.