. "*Coluber catenifer (Blainville, 1835)" . . . "*Pituophis catenifer" . . "The Pacific gopher snake (Pituophis catenifer catenifer) is a subspecies of large nonvenomous colubrid snake native to the western coast of the United States."@en . . . "*Pityophis catenifer (—Cope, 1900)" . . "*Pituophis catenifer catenifer" . . "(—Stejneger&Barbour, 1917)" . "(—Baird&Girard, 1853)" . . "Pacific gopher snake"@en . . . .