Aegista squarrosa is a species of air-breathing land snails, a terrestrial pulmonate gastropod in the family Camaenidae.
Subspecies Aegista squarrosa squarrosa (A. Gould, 1859) Aegista squarrosa tokunoshimana (Pilsbry & Y. Hirase, 1904)
Description (Original description in Latin) The shell is planorboid and somewhat squarish, with a coloration that is ochreous-corneous and paler on the underside. It has a convex shape and a broad umbilicus. There are six whorls that are convex and subangular at the periphery. The aperture is small, narrow, and lunate, with a simple peristome that is reflexed towards the columella.Gould, A. A. (1859). Descriptions of shells collected by the North Pacific Exploring Expedition. Proceedings of the Boston Society of Natural History. 6: 422–426.
Distribution This species occurs on the Ryukyu Islands, Japan, and Korea.
References
Minato, H. (1988). A systematic and bibliographic list of the Japanese land snails. H. Minato, Shirahama, 294 pp., 7 pls.