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| At this level the macronucleus (mac) and micronucleus (mic) are present. In the buccal cavity a row of paroral cilia (pak) is seen to separate the buccal cavity (bc) from the beginning of the cytopharynx (cp). spo, spongiome of CV; pek, membranelles of perioral ciliature; opk, oral cilia; mt, microtubules bordering the ventral wall of the BC. EM taken on 3/12/71 by R. Allen with Hitachi HU11A TEM. Neg. 3,800X. Bar = 2µm. |
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