Mary Kay from Maritime Gloucester writes in-
I’m going to go with Thetys vagina. That is the actual scientific name for the organism, not a joke. For more info see http://eol.org/pages/510608/overview.
Landed this morning at Captain Joe and Sons-
I put out the challenge to see who could identify it first and Mary Kay from Mariotime Gloucester as usual kicked the New England Aquariums butt all over the place.
That’s Allota Fagina if I do say so myself.