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when did the sceintific name for the Great Basin Gopher snake change from Pituophis melanoleucus deserticola to Pituophis catenifer deserticola?

Wildlife Expert - Ken Burton

Taxonomic revision of Pituophis stems mostly from genetic work by J.A. Rodriguez-Robles and J.M. De Jesus-Escobar, published in 2000 [Molecular Phylogenetics and Evolution 14(1):35-50]). Previously, gopher, bull-, and pine snakes were considered one species, P. melanoleucus. Now, gopher and bullsnakes are elevated to species status as P. catenifer and the Louisiana Pine Snake is also regarded as a distinct species.

Related to this Question

Gopher Snake
Pituophis catenifer

Pine Snake
Pituophis melanoleucus

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