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Umbraculum sp. #3
![Umbraculum sp. #3: buried](../photos/Umbraculum-sp3-A207s.jpg)
buried
![Umbraculum sp. #3: "breathing" channel?](../photos/Umbraculum-sp3-A207t.jpg)
closeup of possible "breathing" channel
![Umbraculum sp. #3: exposed](../photos/Umbraculum-sp3-A207u.jpg)
same animal, exposed
shows animal buried in sand
during the day; closeup shows what might be the end of a mucus-lined
channel serving to maintain water circulation over its gill while
resting...?
Photos: PF: Maalaea Bay, Maui; May 27, 2021.
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