Thamnophis atratus hydrophilus - Oregon Aquatic Garter Snake

     1.  Dorsal stripe may be yellow to orange and can at times be very indistinct
     2.  Lateral stripe may be lacking all together
     3.  Throat may be lemon yellow 

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• Leptotyphlopidae • Boidae • Viperidae • Colubridae • Elapidae •