Two unknown species of Mollusca Gastropoda from the Archipelago Fernando de Noronha (Brazil), with description of a new species belonging to the genus &lt;i&gt;Phidiana Gray&lt;/i&gt;, 1850 and a new record of &lt;i&gt;Dendrodoris senegalensis&lt;/i&gt; Bouchet, 1975
Scientia marina