cryptostomy

名词 n.

英文释义

名词 n.
  1. An adaptation in which the mouth is reduced to a slit and its location is concealed.
    — They are comparatively large, without outgrowths, of a rounded shape, with a flattened ventral surface and cryptostomy or plagiostomy with a lip.

词源

From crypto- + stoma + -y.
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