Shell moderately umbilicated, lenticular, fulvous brown, rather thin,
sub-translucent; the nepionic whorls shining, the remainder dull, finely
closely ribbed, the ribs regularly curved and becoming more distant
on the last quarter-whorl. Spire depressed, apex prominent, suture
shallow. Whorls 5½, a little rounded above, flattened below, obtusely
angulated above the periphery, increasing slowly and regularly, the
last ascending a little in front. Aperture crescent-shaped, oblique,
margins distant, united by a very thin callus on the parietal wall,
which is finely granulated. Peristome curved, scarcely thickened,
reflexed, livid; upper margin a little arcuate at the junction with the
shell-wall, curved slightly forward, then suddenly receding, basal
nearly straight, columellar receding a little at first, then curved
forward, triangularly dilated longitudinally, and impinging upon the
umbilicus, which is deep and cylindrical. Diam. maj. 11, min. 10 mm.;
alt. 5 mm.
Hab. — Valencia, Spain.
Type in my collection.
References
This article incorporates public domain text from reference.[2]
^ abcdGude G. P. L. K. (1910) "Description of a new species of Helicodonta from Spain". Proceedings of the Malacological Society of London9(2): 124-125.