Fig. 6

Photomicrograph of the general structure of the foot of Monacha obstructa (control group) stained with Harris haematoxylin and eosin showing: A side (yellow arrows) and the sole (red arrow) of the foot which covered with epithelial layer (e), the inner connective tissue layer (ct), glands embedded in the connective tissue (g) and the muscular tissue (m). B Photomicrographs of the foot of M. obstructa showing B the foot sole is covered with pseudostratified columnar epithelium (co), connective tissue layer (ct) with many deeply embedded glands (g), the and superficial folds in the epithelium covering the sole (blue arrows)