Fig. 6

Photomicrographs of non-embryonated P. equorum eggs. (a). Freshly isolated egg from the uterus of an adult female surrounded by the albuminous layer (A), chitinous layer (C), and lipid layer (L), and containing undeveloped unicellular ovum (U). (b). Developed egg showed one-cell-stage (O), (c). Developed egg showed two-cell-stage (T).