Otoconcha

Otoconcha is a genus of small air-breathing semi-slugs, terrestrial pulmonate gastropod molluscs in the family Charopidae.

Otoconcha is the type genus of the subfamily Otoconchinae.

Description
Frederick Wollaston Hutton firstly defined this genus in 1884. Hutton's diagnosis reads as follows: Shell external, of very few rapidly increasing whorls, all of which are open underneath. Animal limaciform, much too large to withdraw into the shell; mantle rather anterior, covering the shell; no locomotive disc, nor mucous caudal gland. Jaw with distant ribs.

Species
Species within the genus Otoconcha include:
 * Otoconcha dimidiata (Pfeiffer, 1853) - type species
 * Otoconcha fiordlandica (Dell, 1952)
 * Otoconcha oconnori (Powell, 1941)
 * Otoconcha roscoei Climo, 1971