Abstract
The occurrences of the following three brackish water gastropods inhabiting sandy mud flats on the southern coasts of Tokushima Prefecture are reported: Stenomelania rufescens from the Kaifu Riverin Kaifu Town, and Cerithidea cingulata and Batil laria zomalis from Nasa Estuary in Shishi-kui Town. Stenomelania rufescens seems to be a rare species in Japan, and C. cingulata and B. zonalis were designated as the endangered species of Tokushima Prefecture, though recent status of these snails had been unknown in the present district.
