Can you identify this frog?

Found in Southeast West Virginia, there are only 14 suspects, unless he doesn't really belong here.

Found the next day, in a small hole that I dug to try and understand the ground water here, in a mature forest, on an Appalachian foothill/side of a small mountain. Soil has a lot of clay/mud and springs/underground streams.

I picked him up, placed him on moss, photographed, and put him back, so I can't check for spades.

He seems to vary from the prime suspects by:

1- The 2 well defined ridges on his back.
2- His well defined ear thingy. (tympanum?)
3- Belly Spots.
4- Thin-ness of the yellow ring in his eye.
5- Bulging oversized eyes that seem pretty close together.
6- It's darker than the suspects, and was found on light "dirt".

It is about an inch to an inch and a half, and appears to be a juvenile. His hind feet are well webbed.

Prime Suspects:

Eastern spadefoot
Eastern cricket frog
Blanchard's Cricket Frog
Mountain chorus frog
Upland chorus frog

Frogs of interest (Doubtful):

Gray treefrog (Hyla versicolor) C
Cope's gray treefrog (Hyla chrysoscelis) C
Eastern American toad (Anaxyrus americanus) C
Fowler's toad (Anaxyrus fowleri) C
Northern spring peeper (Pseudacris crucifer) C
American bullfrog (Lithobates catesbeianus) C
Northern green frog (Lithobates clamitans) C
Wood frog (Lithobates sylvaticus) C
Northern leopard frog (Lithobates pipiens) U
Pickerel frog (Lithobates palustris) C

Thanks in advance!

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