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A sponge of a grade of structure showing some folding of the body wall, with choanocytes only lining radial canals.
- ‘Ascon, sycon, and leucon are levels of complexity that grade one into the other.’
- ‘Sycons are quick enough at regenerating to cope, I have a few different species on the way too that would probably be suitable, I might try and culture some.’
- ‘In the tide-pools all four calcareous sponges occur in quantity, and under heavy masses of weed both the Sycons are equally abundant.’
Late 19th century adopted as a genus name from Greek sukon ‘fig’.
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