choanoflagellate

choanoflagellate

[koh-uh-noh-flaj-uh-leyt]
noun Zoology.
any flagellate of the genera Monosiga and Proterospongia, having a protoplasmic collar encircling the base of the flagellum.

Origin:
1895–1900; < Neo-Latin Choanoflagellata name of the order. See choanocyte, flagellata

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Encyclopedia Britannica
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choanoflagellate

any protozoan of the flagellate order Choanoflagellida (sometimes classified in the order Kinetoplastida) having a transparent food-gathering collar of cytoplasm around the base of the flagellum. Many choanoflagellates are solitary and sessile (attached to a surface), with or without a stalk. Some have a lorica (rigid covering). These organisms closely resemble the collar cells of sponges. Salpingoeca is an example.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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