Graham's Crayfish Snake

Graham's Crayfish Snake

Scientific Name: Regina grahamii

Family: Natricidae



Description & Size

  • Legless
  • No eyelids
  • Lacks external ears
  • Scales on the back have a prominent ridge in the middle (strongly keeled)
  • Divided anal scale
  • Total length:  45.7-119.4 cm (18.0-47.0 in)
  • Back color:  light brown to olive
  • May or may not have dark lines extending down the back
  • Belly color:  lightly colored may or may not have spots
  • Wide cream to yellow strip located on the first three scale rows on the back starting from the belly


  • Permanent wetlands
  • Edges of streams and lakes
  • Crawfish burrows


  • Crayfish
  • Rarely frogs and fish

Life History

  • Diurnal, rarely nocturnal
  • Active season:  April – October
  • Breeding season:  April – May
  • Gives live birth
  • On average, 15 young per female


Graham's Crayfish Snake Range