Clarke, Samuel <br/><br/>
The hydroids. 

 - Cambridge :  Printed for the Museum,  1907. 
 - 18p.  ; 34cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydroida
<br/><br/><label>LC Class. No.: </label>QTO QL1.H35V.35 no.1