and Louisiana pine snakes
in the very recently released Snakes of the United States and Canada (Smithsonian), Carl H Ernst continues to recognise the canebrake as a subspecies, C. horridus atricaudatus and considers the Louisiana pine snake as a subspecies of the gopher snakes, designating it taxonomically as Pituophis catenifer ruthveni.



I can't keep up with all the lumping and splitting!