oph is ▁mar ci anus ▁ ▁North western ▁gar ters nake ▁Th am n oph is ▁ord ino ides ▁ ▁Western ▁rib b ons nake ▁Th am n oph is ▁proxim us ▁ ▁Pla ins ▁gar ters nake ▁Th am n oph is ▁rad ix ▁ ▁N arrow - head ed ▁gar ters nake ▁Th am n oph is ▁r uf ip unct atus ▁ ▁Eastern ▁rib b ons nake ▁Th am n oph is ▁sa ur ita ▁ ▁Common ▁gar ters nake ▁Th am n oph is ▁s irt alis ▁ ▁( San ▁Francisco ▁Gar ters nake ▁T . ▁s . ▁t etr ata enia : ▁) ▁L ined ▁s nake ▁L ined ▁s nake ▁Trop id oc lon ion ▁line atum ▁ ▁Earth ▁sn akes ▁R ough ▁earth s nake ▁Hal de a ▁stri at ula ▁ ▁Sm ooth ▁earth s nake ▁Virginia ▁val eria e ▁ ▁Sub family : ▁D ips ad inae ▁Sh arp - ta iled ▁sn akes ▁Forest ▁sharp - ta iled ▁s nake ▁Common ▁sharp - ta iled ▁s nake ▁Cont ia ▁ten uis ▁ ▁Night ▁sn akes ▁Des ert ▁night s nake ▁Hy ps ig l ena ▁ch lor op ha ea ▁( former ly ▁in ▁Hy ps ig l ena ▁tor qu ata ▁) ▁Ch ih u ah uan ▁night s nake ▁Hy ps ig l ena ▁j ani ▁( former ly ▁in ▁Hy ps ig l ena ▁tor qu ata ▁) ▁Coast ▁night s nake ▁Hy ps ig l ena ▁och ror h