Rattus est quaelibet fere quinquaginta specierum rodentium familiae Muridarum. Duae sunt species maiores: Rattus rattus et Rattus norvegicus. Rattus mediocris duos vel tres annos vivit, et longitudo corporis est circiter 25 cm, longitudo caudae circiter 20 cm[1].

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Rattus norvegicus

Classis : Mammalia 
Ordo : Rodentia 
Superfamilia : Muroidea 
Familia : Muridae 
Subfamilia : Murinae 
Genus : Rattus 
Fischer de Waldheim, 1803
   
Palaeontologia
Primum Pleistocaenum–Recens
Subdivisiones: Species
50 species
Synonyma
Stenomys Thomas, 1910
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Rattus rattus.

Nexus interni

Notae

Nexus externi

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