Auriculastra saccata is a species of air-breathing land snail, a terrestrial gastropod mollusc in the family Ellobiidae, the salt marsh snails.
The length of the shell attains 14 mm, its diameter 6 mm.
(Original description in Latin) The shell is shortly and deeply rimate (having a narrow slit-like opening). It is club-shaped and solid. It is finely striated, somewhat glossy, and displays a brownish-yellow hue, though the surface is irregularly eroded. The spire is elongated-conic with a sharp apex. The suture is flat and appears "torn" or jagged.
There are 8 to 9 flat whorls; the body whorl is nearly equal to the spire in length, widening toward the bottom and becoming sac-like at the base. The aperture is vertical and narrowly oval. Inside, there is a single, very small parietal fold located in the middle and set slightly crosswise. The columellar fold is faintly "double-toothed" or bidenticulate, though this feature is nearly obsolete. The peristome (the rim of the mouth) is blunt; its right margin is curved or sinuated at the top and thickened in the middle, while the columellar margin is dilated, callous, and spreading outward.
This species occurs in the Philippines, Indonesia and Japan.