. . "G5" . "The western rat snake (Pantherophis obsoletus) \u2014 also known as the Texas ratsnake, black rat snake, pilot black snake, or simply black snake \u2014 is a nonvenomous species of Colubridae found in central North America. No subspecies are currently recognized."@en . . . "*Coluber obsoletus" . . . . "*Scotophis obsoletus" . . "Western rat snake"@en . . . "*Elaphis holbrookii" . . "*Elaphis obsoletus" . "TNC" . . . "*Pantherophis obsoletus" . "*Pituophis obsoletus" . "*Elaphe obsoleta" .