PORIFFERA 11 TETRAXONIDA DENDY 

 - LONDON  TRUSTEES OF THE BRITISH MUSEUM  1906 
 - 56P. :  26 ill ;    30 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>11  / H10