Opaque Sea Squirt

Opaque Sea Squirt

Observation - Opaque Sea Squirt. Description: A battle to ID this one; an absolute waterline plague among serrated wrack. Found alongside A.mentula; the latter very few in number. See http://www.ispot.org.uk/node/341136 Possibly Corella parallelogramma (much less likely because of size and jizz)

A battle to ID this one; an absolute waterline plague among serrated wrack. Found alongside A.mentula; the latter very few in number.
See http://www.ispot.org.uk/node/341136

Possibly Corella parallelogramma (much less likely because of size and jizz)
But see http://www.ispot.org.uk/node/333588
EDIT
Added the word jizz!