Acanthodesmia prismatium haeckel
Haeckel, Ernst
<a href="//commons.wikimedia.org/wiki/File:Die_Radiolarien_(Rhizopoda_radiaria)_(Plate_IV)_(8591415149).jpg" title="File:Die Radiolarien (Rhizopoda radiaria) (Plate IV) (8591415149).jpg">File:Die_Radiolarien_(Rhizopoda_radiaria)_(Plate_IV)_(8591415149).jpg</a>