\Length, 4.6 mm; color gray to milky white; somewhat glossy; peristome not clearly continuous; margins of peristome narrow above;

Notes:
Locality: Missouri, Washington Co., Washington State Park, from soil on rock shelves along bluff face.

References:
Pilsbry, 1948, LMNA pp. 874-878, fig. 472 1-11
Hubricht, 1985, Dist. Nat. Land. Moll. E. US, p. 8, map 44