Opeas prestoni Sykes, 1898 (original combination) Allopeas prestoni is a species of small, tropical, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Achatinidae.

(Original description in Latin) The slightly perforate and elongate-cylindrical shell is translucent, thin, and exhibits a horny or waxy-horny coloration.

The shell comprises 8.5 flatly convex whorls, delicately striated with growth lines.

The body whorl accounts for 9/20 of the total shell length.

The peristome is simple and sharp, with the columellar margin slightly reflexed at the base, nearly covering the perforation.