Hatschek's pit

In the lancelet Hatschek's pit, not to be confused with Hatschek’s nephridium, is a deep ciliated fossa on the dorsal midline of the buccal cavity (the region of the gut behind the mouth) [1]

Among other things, it secrets mucus which entraps food particles from the water.

References

  1. ↑ Jefferies, R.P.S. (December 1, 1986). The Ancestry of the Vertebrates. London, England: Intercept Ltd.


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