362
THE ESSEX NATURALIST
Family Cochlicopidae
Cochlicopa lubrica (Muller). Mostly found on the sand and gravel
areas in hedgerows and among leaf-litter, mosses and brick
rubble, but also among plant roots in the sandy area near
the County Youth Camp site.
Family Vertiginidae
Columella edentula (Draparnaud). Occasionally found in the
soil and leaf-litter of dense hedgerows between fields on the
drained marsh and in the sandy area near the Youth Camp
site.
Vertigo pygmaea (Draparnaud). Common in the hedgerows and
ditches and on sand near the Youth Camp site.
Lauria cylindracea (da Costa). One record only, of a shell from
a dry ditch near Barrow Hill.
Family Valloniidae
Vallonia pulchella (Muller). Common in ditches and hedgerows
in most parts of the island.
Family Clausiliidae
Clausilia bidentata (Strom.). Common in hedgerows particularly
on the drained marsh and among plant roots on some of
the older seawalls.
Family Helicidae
Cepaea hortensis Muller. Generally distributed but found mainly
on sea walls and in hedgerows.
Cepaea nemoralis L. Widely distributed, in hedgerows, gardens
and on the sea walls. More common than C. hortensis.
The following band formulae were found among the speci-
mens collected: —12345, (123) (45), 00345, 00300, 00000.
Helix aspersa Muller. Common and widespread in hedgerows and
gardens.
Trichia striolata (C. Pfeiffer). On banks and sea walls and in
hedgerows and meadows.
Trichia hispida (L.). With T. striolata but more common.
Monacha cantiana (Montagu). Occasionally found on banks and
in hedgerows.
Helicella caperata (Montagu). Very common in most localities; in
hedgerows, on sea walls and banks and on the sandy ground
near the Youth Camp site.
Family Endodontidae
Discus rotundatus (Muller). Occasional in hedgerows, probably
common.
Family Arionidae
Arion hortensis Ferussac. Common in gardens and along hedge-
rows and ditches.