canthellus

名词 n.

英文释义

名词 n.
  1. A raised ridge of cuticle around the inner border of the trulleum in certain ants.
    — The trulleum in many groups is closed along its inner (medial) border by a raised ridge of cuticle, the canthellus. The canthellus may extend to, and even fuse with, the base margin of the mandible (canthellus closed) or may fail to reach the basal margin (canthellus open).
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