Stereoscan observations of the miracidium and early sporocyst of XXXX .

@entity558 @entity1829 @entity661 @entity380
Whole miracidia of @entity380 , miracidia vibrated in an ultrasonic cleaner, and the miracidium-sporocyst transition were studied in the stereoscan electron microscope. After vibrating, the cilia broke off near the bases and the epidermal cells, intercellular ridge and sensory structures were revealed. The @entity661 had a folded surface with penetrating sensory cilia. The number of epidermal cells varied between 17 and 22. The lateral papillae appeared as bulbous projections on either side between the first and second tiers of epidermal cells. There was a ciliated pit nerve ending close to each @entity1829 . A few ciliated pits were found between the cells in the first tier, and up to twelve ciliated pits with long cilia could be found between the second and third tiers. Miracidia placed in haemolymph from Planorbarius corneus cast off the apical ciliated part of the epithelial cells, and large scars appeared where the ciliated plates had been. Later, the syncytial intercellular ridge dispersed throughout the surface of the mother sporocyst, and small cytoplasmic knobs appeared on the surface. The @entity661 and the lateral papillae were still observed a few hours after shedding the ciliated plates, but the ciliated @entity558 shortly after the ciliated plates were lost.
