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. 2008 Nov 11;2(11):e334. doi: 10.1371/journal.pntd.0000334

Figure 2. Eggs of S. japonicum, shown by TEM, prepared by HPF and cryo-substitution.

Figure 2

A. Anterior region of a miracidium, showing the terebratorium. The miracidium is enveloped by, in turn, the lacuna, containing lipoid bodies, the inner and outer envelopes, and the shell. Inpocketings of the outer envelope (asterisk) occur at the boundary of the inner and outer envelopes. B. Posterior end of the miracidium in the lacuna. Note the septate desmosomes (arrows) separating the epithelial plates of the miracidial tegument. Abbreviations: Cil- cilia; IE- inner envelope; L- lacuna; LB- lipoid bodies; Mir- miracidium; S- shell; Ter- terebratorium.