When was Sylvilagus palustris hefneri created?

There is no scientific record of a rabbit species named *Sylvilagus palustris hefneri*.

It's likely that this name is a humorous invention or a misinterpretation of information.

* Sylvilagus palustris is the scientific name for the marsh rabbit, a real species found in the southeastern United States.

* Hugh Hefner was a well-known American publisher and media personality.

It's possible someone created this name as a joke or as a reference to Hefner's famous Playboy Mansion, known for its abundance of rabbits.