Acanthophracta Illustration by Ernst Haeckell By Melanie | November 7, 2013 Acanthophracta Illustration by Ernst Haeckellfrom Kunstformen der Natur (1904) Posted in CC License, Zoological and tagged 1900, 1904, Acanthophracta, Ernst Haeckel, Marine Life ← Corals – Hexacorallia Illustration by Ernst HaeckellSea Urchins – Echinidea Illustration by Ernst Haeckell →