Auricula bicolor Morelet, 1860 Myosotella myosotis, common name the mouse ear snail, is a European species of small salt marsh snail, a terrestrial pulmonate gastropod mollusc in the family Ellobiidae.

[citation needed] (Original description in Latin) The fusiform-ovate shell is imperforate, with only occasional slits, and has a somewhat solid structure with fine striations.

Its coloration is a grayish-tawny, with a pointed spire that is dark violet-brown.

The aperture is narrowly semi-oval, slightly darkened within, and displays two folds.

The peristome is whitish, simple, straight, and sharp, with a columellar margin that is dilated, reflected, and often adnate.