''Semibalanus balanoides'' is a common and widespread boreo-arctic species of acorn barnacle. It is common on rocks and other substrates in the intertidal zone of north-western Europe and both coasts of North America.
Similar species: Symmetrical Sessile Barnacles
By Christine Young
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Uploaded Feb 16, 2020. Captured Jun 18, 2019 08:18 in 1563 Post Rd, Wells, ME 04090, USA.
