British Wildlife Wiki

Papillifera papillaris, also known as Papillifera bidens, is a species of small, air-breathing land snail with a clausilium, a terrestrial pulmonate gastropod mollusc in the family Clausillodae, the door snails. This is a Mediterranean species.

In Britain this species is now sometimes called the "Cliveden snail" because in 2004 it was discovered in the gardens of a well-known Buckinghamshite stately home.

The shells of Papillifera papillaris are left-handed and extremely high-spired, with 10–11 whorls.

The width of the shell is 3.2–3.8 mm, and the height of the shell is 12–15 mm.

The genus name Papillifera means "bearing papules", in other words having pimples, a reference to the small white shell structures along the suture line. The papules are very noticeable in the shells of individuals in this species.