Stylonychia Stylonychia mytilus Ehrenberg, by H. Yoshino
Prorodon Prorodon teres Ehrenberg, cell length 170ʂ, width 130 ʂ, by H. Yoshino
Coleps Coleps hirtus Nitzsch, cell length 44ʂ, width 23ʂ, (Methylene blue), by H. Yoshino