To determine which salamanders from the list you provided live on the West side or East side of the valley, we need to refer to specific geographic ranges of those subspecies of the eastern red-backed salamander (E. e. (Ensatina eschscholtzii) and its subspecies):
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E. e. croceater - Typically found in western areas, this subspecies is often associated with the West side.
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E. e. klauberi - Also generally seen in western regions, corresponding to the West side.
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E. e. eschscholtzii - This subspecies is more prevalent in coastal regions and along the western side of the range.
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E. e. oregonensis - As indicated by its name, it is usually found in the western regions of Oregon. Therefore, it also resides on the West side.
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E. e. platensis - This subspecies is typically found in areas more central or east of the coast, indicating it lives on the East side.
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E. e. xanthoptica - Generally found in eastern regions, particularly in areas that might line up with the East side.
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E. e. picta - Often found in eastern regions, such as the Appalachians, placing it on the East side.
Summary:
- West Side: E. e. croceater, E. e. klauberi, E. e. eschscholtzii, E. e. oregonensis
- East Side: E. e. platensis, E. e. xanthoptica, E. e. picta
This classification might vary somewhat depending on specific regions and exact habitat preferences, but generally aligns with known distributions of these subspecies.