Coriocella nigra
... that the sea gastropod Coriocella nigra has an internal shell and four or five bosses on its body?
... that the sea gastropod <i id="mwAmc"><b id="mwAmg"><a href="./Coriocella_nigra" id="mwAmk" rel="mw:WikiLink" title="Coriocella nigra">Coriocella nigra</a></b></i> has an internal shell and four or five bosses on its body?