Pyramidula pusilla is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Pyramidulidae.

[3] The shell has a low conical shape, broader than high.

The growth lines are fine and narrow, sometimes weak.

The colour is red brown becoming more grey with age.

The geographical distribution of this species is mainly Mediterranean: western and central Europe,[3] southeastern Europe,[4] Caucasus,[4] Central Asia[4] and probably the Russian Far East.