Garter Snakes (Thamnophis)

Lower Classification

  • Aquatic garter snake (Thamnophis atratus)
    • Santa Cruz garter snake (Thamnophis atratus atratus)
    • Oregon garter snake (Thamnophis atratus hydrophilus)
    • Diablo Range garter snake (Thamnophis atratus zaxanthus Boundy)
  • Blackneck garter snake (Thamnophis cyrtopsis)
    • Western blackneck garter snake (Thamnophis cyrtopsis cyrtopsis)
    • Eastern blackneck garter snake, (Thamnophis cyrtopsis ocellatus)
    • Tropical blackneck garter snake, (Thamnophis cyrtopsis collaris)
  • Checkered garter snake (Thamnophis marcianus)
    • Thamnophis marcianus marcianus
    • Thamnophis marcianus praeoculari
    • Thamnophis marcianus bovalli
  • West Coast garter snake (Thamnophis validus)
    • Mexican Pacific Lowlands garter snake (Thamnophis validus celaeno)
    • Thamnophis validus isabellae
    • Thamnophis validus thamnophisoides
    • Thamnophis validus validus
  • Western terrestrial garter snake (Thamnophis elegans)
    • Arizona garter snake (Thamnophis elegans arizonae)
    • Mountain garter snake (Thamnophis elegans elegans)
    • San Pedro Mártir garter snake (Thamnophis elegans hueyi)
    • Coastal garter snake (Thamnophis elegans terrestris)
    • Wandering garter snake (Thamnophis elegans vagrans)
    • Upper Basin garter snake (Thamnophis elegans vascotanneri)
  • Mexican garter snake (Thamnophis eques)
    • Mexican garter snake (Thamnophis elegans eques)
    • Laguna Totolcingo garter snake (Thamnophis elegans carmenensis)
    • Thamnophis elegans cuitzeoensis
    • Thamnophis elegans diluvialis
    • Thamnophis elegans insperatus
    • Northern Mexican garter snake (Thamnophis elegans megalops)
    • Thamnophis elegans obscurus
    • Thamnophis elegans patzcuaroensis
    • Thamnophis elegans scotti
    • Thamnophis elegans virgatenuis
  • Western ribbon snake (Thamnophis proximus)
    • Chiapas Highlands ribbon snake (Thamnophis proximus alpinus Rossman)
    • Arid land ribbon snake (Thamnophis proximus diabolicus Rossman)
    • Gulf Coast ribbon snake (Thamnophis proximus orarius Rossman)
    • Orangestripe ribbon snake or western ribbon snake (Thamnophis proximus proximus)
    • Redstripe ribbon snake (Thamnophis proximus rubrilineatus Rossman)
    • Mexican ribbon snake (Thamnophis proximus rutiloris)
  • Ribbon snake (Thamnophis sauritus)
    • Bluestripe ribbon snake (Thamnophis sauritus nitae Rossman)
    • Southern ribbon snake (Thamnophis sauritus sackenii)
    • Eastern ribbon snake (Thamnophis sauritus sauritus)
    • Northern ribbon snake (Thamnophis sauritus septentrionalis)
  • Blackbelly garter snake (Thamnophis melanogaster)
    • Gray blackbelly garter snake (Thamnophis marcianus canescens)
    • Chihuahuan blackbelly garter snake (Thamnophis marcianus chihuahuanensis)
    • Lined blackbelly garter snake (Thamnophis marcianus linearis)
    • Mexican blackbelly garter snake (Thamnophis marcianus melanogaster)
  • Common garter snake (Thamnophis sirtalis)
    • Texas garter snake (Thamnophis sirtalis annectens)
    • Red-spotted garter snake (Thamnophis sirtalis concinnus)
    • New Mexico garter snake, Thamnophis sirtalis dorsalis
    • Valley garter snake (Thamnophis sirtalis fitchi)
    • California red-sided garter snake (Thamnophis sirtalis infernalis)
    • Thamnophis sirtalis lowei
    • Maritime garter snake (Thamnophis sirtalis pallidulus)
    • Red-sided garter snake (Thamnophis sirtalis parietalis)
    • Puget Sound garter snake (Thamnophis sirtalis pickeringii)
    • Blue-striped garter snake (Thamnophis sirtalis similis)
    • Eastern garter snake (Thamnophis sirtalis sirtalis)
    • Chicago garter snake (Thamnophis sirtalis semifasciatus)
    • San Francisco garter snake (Thamnophis sirtalis tetrataenia
  • Bogert’s garter snake (Thamnophis bogerti)
  • Goldenhead garter snake (Thamnophis chrysocephalus)
  • Conant’s garter snake (Thamnophis conanti)
  • Sierra garter snake (Thamnophis couchii)
  • Mexican wandering garter snake (Thamnophis errans)
  • Montane garter snake (Thamnophis exsul Rossman)
  • Highland garter snake (Thamnophis fulvus)
  • Giant garter snake (Thamnophis gigas)
  • Godman’s garter snake (Thamnophis godmani)
  • Two-striped garter snake (Thamnophis hammondii)
  • Liner’s garter snake (Thamnophis lineri)
  • Tamaulipan montane garter snake (Thamnophis mendax)
  • Southern Durango spotted garter snake (Thamnophis nigronuchalis)
  • Northwestern garter snake (Thamnophis Oregon)
  • Tepalcatepec Valley garter snake (Thamnophis postremus)
  • Yellow-throated garter snake (Thamnophis pulchrilatus)
  • Plains garter snake (Thamnophis radix)
  • Rossman’s garter snake (Thamnophis rossmani)
  • Narrow-headed garter snake (Thamnophis rufipunctatus)
  • Longtail alpine garter snake (Thamnophis scalaris)
  • Short-tail alpine garter snake (Thamnophis scaliger)
  • Sumichrast’s garter snake (Thamnophis sumichrasti)
  • Madrean narrow-headed garter snake (Thamnophis unilabialis)