▁v ine ▁sn akes ▁Brown ▁v ines nake ▁O xy bel is ▁a ene us Le af - n osed ▁sn akes ▁S add led ▁leaf - n osed ▁s nake ▁Ph yll or h yn chus ▁brow ni ▁ ▁Sp otted ▁leaf - n osed ▁s nake ▁Ph yll or h yn chus ▁dec urt atus ▁ ▁Bull , ▁g opher , ▁and ▁p ine ▁sn akes ▁G opher ▁s nake ▁P itu oph is ▁c aten ifer ▁ ▁P ines nake ▁P itu oph is ▁mel ano le uc us ▁ ▁Louisiana ▁p ine ▁s nake ▁P itu oph is ▁r uth ven i ▁ ▁P ine ▁wood ▁s nake ▁P ine ▁Wood s ▁lit ters nake ▁Rh ad ina ea ▁flav il ata ▁ ▁Long - n osed ▁s nake ▁Long - n osed ▁s nake ▁Rh ino che ilus ▁le con tei ▁ ▁P atch - n osed ▁sn akes ▁Eastern ▁patch - n osed ▁s nake ▁Salv adora ▁gra ham iae ▁ ▁Western ▁patch - n osed ▁s nake ▁Salv adora ▁hex ale pis ▁ ▁Big ▁B end ▁patch - n osed ▁s nake ▁Salv adora ▁( hex ale pis ) ▁desert icola ( species ▁not ▁recognized ▁by ▁SS AR ) ▁Mountain ▁r ats nake ▁Green ▁r ats nake ▁S entic olis ▁tri as pis ▁ ▁Gr ound ▁s nake ▁Western ▁grounds nake ▁Son ora ▁sem ian n ul ata ▁ ▁Black - head ed , ▁flat - head ed , ▁and ▁crown ed ▁sn akes ▁Mexican ▁black