Trochulus striolatus
Trochulus striolatus. (Photo: © Dr. Roy Anderson, MolluscIreland) |
Trochulus striolatus. (Photo: © Jeremy Lee, UK Nature) |
Trochulus striolatus. (Photo: © Dr. Roy Anderson, MolluscIreland) |
Family
Hygromiidae
Species
Trochulus striolatus (Pfeiffer, 1828)
Common name
Strawberry snail
Description
The somewhat flattened (low spireSpire:
All the coils (whorls) of a shell above the body whorl.
) shellShell:
A hard, inflexible, calcareous or chitinous structure that vary in size and may either completely encasing the animal, covering some part of it or be internal.
of the strawberry snail measures 6.5-9 mm high and 11-15 mm wide, with 6 convex whorlsWhorls:
Pleural of whorl. A whorl is a complete spiral turn/growth of the shell of a mollusc. The whorls are counted from the apex outwards.
. The growth ridges of this species are very prominent. The shellShell:
A hard, inflexible, calcareous or chitinous structure that vary in size and may either completely encasing the animal, covering some part of it or be internal.
is dark brown or red-brown. Light brown spots/flecks may be present. The umbilicusUmbilicus:
A navel-like indentation or depression in the center of the shell. It may be described as open (inside of columella visible), partially closed (partly covered by base of aperture) or completely closed (not visible). The width of the umbilicus is a measure of its greatest diameter.
(navel) is obvious. The shells of juveniles of this species are hairy, but the shells of adults lack hair.
Native range
Northwestern Europe
Distribution
Europe: England, Scotland, Wales, Ireland, Netherlands, Slovakia
Ecology
This species is often associated with human dwellings (e.g., in gardens, on buildings/hedges). As its common name suggests, this species is a pest of strawberries.
Synonyms
- Trichia striolata
References
Anderson 2005; Daw and Ivison; Kerney et al. 1979