Lauria cylindracea

Lauria cylindracea, common name "the common chrysalis snail", is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Lauriidae.

Lauria cylindracea
A shell of Lauria cylindracea
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Stylommatophora
clade Orthurethra
Superfamily:
Pupilloidea
Family:
Lauriidae
Genus:
Lauria
Species:
L. cylindracea
Binomial name
Lauria cylindracea
(E. M. da Costa, 1778)

Description

For terms see gastropod shell

The 3-4 x 1.8 mm shell is oval with a blunt apex and 5-6 weakly convex whorls. The last whorl has the largest diameter. The aperture with parietalis and with or without angular tooth. The margin is white, sharp and reflected in fully grown specimens, usually with a whitish parietal callus. The umbilicus is open and narrow. The shell colour is brown, transparent and shiny. It is weakly striated. Juveniles have additional folds visible from outside the shell. The animal is dark with lighter sides and foot. The upper tentacles are short, the lower tentacles very short. The animal crawls with the shell in a high and almost straight position.

Distribution

This species is known to occur in a number of countries and islands:

It has been introduced to:

  • British Columbia, Canada[2]
gollark: The problem is worse in a spæce future, because of the fact that spaceships have lots of kinetic energy.
gollark: Hey, humans could TOTALLY mess up in that way too!
gollark: *But* some single humans could... probably break civilization.
gollark: Not entirely, no.
gollark: As technology improves this will probably get even more problematic as individual humans get able to throw around more energy to do things.

References
  1. Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
  2. Forsyth, R.G. 2004. Land Snails of British Columbia. Royal British Columbia Museum Handbook. Royal BC Museum, Victoria. iv + 188 pp.


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