Family: Body monopodial; locomotion by slight forward bulging (Illustrated Guide, 1985).
Genus: Limax amoebae with hyaline cap reduced to shallow crescent or absent in continuing locomotion, though always seen on initiation of pseudopodium; advance often with non-eruptive slight antero-lateral bulging; villous-bulb uroid with more or less rigid fine villi often present (Page, 1976).

Saccamoeba sp. 6 clips Kuroiso Tochigi, 1998

Saccamoeba sp. 2 clips Higashi-hiroshima Hiroshima, 1998