Class [Mammalia] Linnaeus, 1758 - mammals
Count: [*] 21o;132f;1061g;4316s; ‡1f;5g;38s
   Order Rodentia Bowdich, 1821 - rodents
  Count: [*] 29f;399g;1788s; ‡1g;16s
     Family Ctenomyidae Lesson, 1842 - tuco-tucos
    Count: [*] 1g;38s
       1 Genus Ctenomys Blainville, 1826 - tuco-tucos
      Count: [*] 38s