Animal with short head, with a retractile, often produced buccal sac ; eyes at the tips of long, cylindrical, retractile peduncles ; inferior tentacles moderate ; foot elongate, narrow, simple posteriorly. Lingual teeth numerous, the transverse rows more or less curved ; central teeth inconspicuous, marginals aculeate, or with a single long recurved apex. Shell spiral,fusiform, corneous, more or less transparent, rarely longitudinally banded ; aperture longitudinal, narrow ; columella twisted or truncated anteriorly. Living in humid situations ; carnivorous.