T. arenarius may refer to:

  • Taterillus arenarius, the Robbins's tateril or Sahel gerbil, a rodent species found only in Mauritania
  • Triaeniopholis arenarius, a synonym for Lampropeltis getula, the eastern kingsnake, common kingsnake or chain kingsnake, a harmless colubrid species found in the United States and Mexico

See also

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