it was stated that she was "about 6 inches long". that's not a specific measure, but also, still not outside the size of a mature three-toe. Most of the three-toes I have seen in the woods of east Texas were that big. 4-6 inches is average adult size.
no, the 4 toes don't really mean anything.
the coloration of the carapace, and especially the plastron is way too light, constant, and strongly indicative of three-toed.
as I said that's not definitive to hang an ID on either, but it goes a long way toward supporting evidence.
the substantial lack of flaring in the rear scutes on such a mature turtle, and, the shorter domed/less elongated carapace; still strongly favor three-toed over coastie, in my opinion.
the reason I stated she had to be somebody's disposed of pet...was because she was WAY WAY far away from home, not because her shell looked so good. most wild turtles have better shell growth than captive ones.
eastern ( carolina ) subspecies morphology is some of the most difficult to determine and make an ID on. but we will have to agree to disagree on this. I'm still comfortable with three-toed ID because I think there are more descriminators for it than gulf coast.
Mick
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"When tyranny and oppression come to this land, it will be in the guise of fighting a foreign foe."
James Madison