Shell very thin, fragile, depressed, horn colour pellucid, very little convex; whorls four, irregularly wrinkled across ; aperture sublunated, lip thin, brittle, junction with the body whorl acute; umbilicus large and deep.
Length one-tenth of an inch nearly; breadth nearly one-fifth.
Plate 4. Fig 4.
Under the bark of decaying trees very common. Inhabitant pellucid; base white, acute behind, not extended forward before the head; head and neck dusk; tentacula four; lower ones very short; eyes placed in the tip of the superior pair.
Original Description Citation:
Say, T. (1817). Conchology. - In: Nicholson, W.: American edition of the British Encyclopedia, or, dictionary of arts and sciences comprising an accurate and popular view of the present improved state of human knowledge. First Edition, A-3 - C-6 [= 1-20], pl. [1-4].page(s): [unpaginated], pl. 1, fig.1
Nature Serve Conservation Status: