Hatschek's pit

From Wikipedia, the free encyclopedia

This article is orphaned as few or no other articles link to it. Please help introduce links in articles on related topics. (September 2006)

In the lancelet Hatschek's pit, also called Hatschek’s nephridium, is an unpaired kidney whose duct opens into the anterior pharynx. It can be seen as a deep ciliated fossa on the dorsal midline of the buccal cavity (mouth). Among other things, it secrets mucus which entraps food particles from the water.