Red-barred Garter Snake

Eutaenia sirtalis, variety parietalis, (Say)

Colouration: This variety is distinct, owing to the fusing together of the black spots on each side of the central stripe, and the fusing of the lower series of spots into the solid black area above, thus restricting the ground-colour to narrow bars between the latter series of spots; these bars are usually bright brick red.* (A colour that quickly fades to yellowish-white on alcoholic specimens.)The area covered by the spots is not black with all specimens of this form. Some show a rich brown tinge-others a dull olive. The central stripe is distinct, and may be yellow, greenish, or red. The side stripe on many specimens comes in contact with the red bars and imparts a wavy, chain-like outline, especially on the forward portion of the body. The top of the head is pale olive, or reddish-yellow.
Dimensions: Total Length . . . . .251/2 inches.
Distribution: Occurs commonly throughout the plains region, from Montana to Texas and westward to California and Washington. It has also been taken in the Eastern States, but in the latter is very rare.

Beneath, this form may be dull yellow, green or olive, with the chin much paler.

Length of Tail . . . . .61/2 inches.

Greatest Diameter . . . . .5/8 inches.

Width of Head . . . . .9/16 inches.

Length of Head . . . . .11/8 inches.