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 of choanoflagellate

1895–1900; < New Latin Choanoflagellata name of the order. See choanocyte, flagellata

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

This minute form looked so much like a choanoflagellate that I supposed it to be one until I discovered an empty case (Fig. 8).
Marine Protozoa from Woods Hole
Gary N. Calkins