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The miracidiumof the Schistodoma japonicum:The apical papilla possesses a net-like structure with 2 apical gland openings and 4-6 short cilia. 日本血吸蟲毛蚴：頂突呈網(wǎng)格狀，上有2個(gè)穿刺腺開口及4—6根短纖毛。