Sentence Examples


  • Piercing mandibles, retracted within the head-capsule.
  • Hydrocaulus, and forms a cup, the hydrangium or hydrotheca (h, t), standing off from the body, into which the hydranth can be retracted for shelter and protection.
  • It is protruded and retracted by special muscles which are partly attached to the ventral, distal end of the ilium.
  • The ninth and tenth segments are at most times retracted within the eighth.
  • B, spiracle on prothorax; c, protruded head region; d, tail-end with functional spiracles; e, f, head region with mouth hooks protruded; g, hooks retracted; h, eggs.