This is not a Merge or a Split - it is a 2-to-2 relationship that can't be fully represented here. A second output should be Pantherophis ramspotti
A recent paper by Crother et al. takes 2 concepts Pantherophis vulpinus & Pantherophis gloydi, redefines the boundary separating them producing two other concepts Pantherophis ramspotti & Pantherophis vulpinus (http://www.hindawi.com/isrn/zoology/2011/436049/)