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)