A juvenile
shell of Truncatella subcylindricaAn adult
shell of Truncatella subcylindricaTentacle of Truncatella subcylindrica with at its base the eye and its white anterior lens.
This species of snail has a
shell which is light in color, and which can reach 5 mm in length.[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]
Distribution
This snail is native to areas of the northeastern Atlantic coastline, from
Morocco and the
Mediterranean coast to the
Black Sea.[2] This native distribution includes
Great Britain.
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]
Habitat
A group of Truncatella subcylindrica underneath a stone.
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] It prefers the edge of sheltered waters where the salinity is at 18–40
psu.[2][3]
Life cycle
The sexes are separate.[2] Fertilized eggs are laid as egg capsules, which are attached to
detritus.[2][3]
References
This article incorporates public domain text from the reference[2]
Locard, A. (1894). Description des mollusques quaternaires nouveaux recueillis aux environs de Crémieu (Isère) par M. le Dr Jaquemet. Annales de la Société Linnéenne de Lyon (N.S.). 41: 201-220.
Rowson, B., Powell, H., Willing, M., Dobson, M. & Shaw, H. (2021). Freshwater Snails of Britain and Ireland. FSC Publications, Telford, UK.
A juvenile
shell of Truncatella subcylindricaAn adult
shell of Truncatella subcylindricaTentacle of Truncatella subcylindrica with at its base the eye and its white anterior lens.
This species of snail has a
shell which is light in color, and which can reach 5 mm in length.[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]
Distribution
This snail is native to areas of the northeastern Atlantic coastline, from
Morocco and the
Mediterranean coast to the
Black Sea.[2] This native distribution includes
Great Britain.
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]
Habitat
A group of Truncatella subcylindrica underneath a stone.
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] It prefers the edge of sheltered waters where the salinity is at 18–40
psu.[2][3]
Life cycle
The sexes are separate.[2] Fertilized eggs are laid as egg capsules, which are attached to
detritus.[2][3]
References
This article incorporates public domain text from the reference[2]
Locard, A. (1894). Description des mollusques quaternaires nouveaux recueillis aux environs de Crémieu (Isère) par M. le Dr Jaquemet. Annales de la Société Linnéenne de Lyon (N.S.). 41: 201-220.
Rowson, B., Powell, H., Willing, M., Dobson, M. & Shaw, H. (2021). Freshwater Snails of Britain and Ireland. FSC Publications, Telford, UK.