[2] Like all other species in this genus, the shell loses its apical whorls as it grows, giving it a truncated and cylindrical appearance.
[3][2] This snail is native to areas of the northeastern Atlantic coastline, from Morocco and the Mediterranean coast to the Black Sea.
There are also some early records from the late 1800s for the eastern United States, on the coast of Newport, Rhode Island, where it was presumably introduced.
[2] This species is found in marine coastal environments, near or just above the high tide line on stones and pebbles, fine sediments and decomposing vegetation.
[2][3] This article incorporates public domain text from the reference[2] Media related to Truncatella subcylindrica at Wikimedia Commons