About Truncatella subcylindrica (Linnaeus, 1767)
Truncatella subcylindrica is a species of snail. Its shell is pale in color and can grow up to 5 mm long. Like all other species in the genus Truncatella, this snail’s shell loses its apical whorls as it grows, which gives the shell a truncated, cylindrical shape. This species is native to northeastern Atlantic coastlines, ranging from Morocco and the Mediterranean coast to the Black Sea; its native range also includes Great Britain. There are also some late 1800s records of this snail found on the coast of Newport, Rhode Island in the eastern United States, where it was presumably introduced. Truncatella subcylindrica lives in marine coastal habitats. It occurs near or just above the high tide line, on stones and pebbles, fine sediments, and decomposing vegetation. It prefers the edges of sheltered waters with a salinity between 18 and 40 psu. This species has separate sexes, and fertilized eggs are laid in egg capsules that attach to detritus.
