Which specific name identifies *Crotalus oreganus* populations in Washington and Oregon?
Answer
Northern Pacific Rattlesnake
While *Crotalus oreganus* serves as a broad scientific designation covering a wide array of subspecies across the continent, a more specific designation applies to regional populations. The term Northern Pacific Rattlesnake is specifically used to refer to the populations of this pit viper found inhabiting the regions encompassing Washington and Oregon. This differentiation in naming helps acknowledge variations in ecology and genetics that occur across the extensive geographical range occupied by the species.

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