Pennaria disticha
... that the colonial hydroid Pennaria disticha has two types of tentacles?
... that the <a href="./Colony_(biology)" id="mwCpU" rel="mw:WikiLink" title="Colony (biology)">colonial</a> hydroid <i id="mwCpY"><b id="mwCpc"><a href="./Pennaria_disticha" id="mwCpg" rel="mw:WikiLink" title="Pennaria disticha">Pennaria disticha</a></b></i> has two types of tentacles?