Fig. 7

Scanning electron microphotographs of B. glabrata foot plantaris. a, b The normal ultrastructure of B. glabrata foot plantaris regularly coated with numerous microvilli and with notable surface folds. c, d The microvilli became curly and disorderly after a 24-h exposure to 0.070 mg/l niclosamide (d, arrow). e, f There was no obvious alteration in salicylanilidate group compared with snails of the control group