刺丝囊系有刺胞动物所特有的微细构造，大量藏于体表（特别是触手）、胃腔内面（特别是胃丝和隔膜丝）的上皮中。
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海蜇的蛰刺实际上来自海蜇体上微小的刺丝囊刺细胞。
The jellyfish sting actually comes from tiny nematocysts on the jellyfish body.
甚至在海蜇死了后，刺丝囊刺细胞还能释放出它们的蛰刺。
The nematocysts can still release their sting even after the jellyfish is dead.
小触手刺丝囊疣从乳突状变为棒状；生殖腺形状从米粒状变为小囊状、三角囊袋状。
Nematocyst warts on the small tentacles become stick from conical and the shape of gonads changes triangular pocket-like from grain-like to small vesica.
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