999778 Hexacoralla, 1899-1904 (colour litho) by German School, (19th century); Private Collection; (add.info.: ?Kunstformen der Natur? (Art Forms in Nature?, 1899-1904, published by Ernst Haeckel (1834-1919) Sechsstrahlige Sternkorallen, Illustration, Tiere, Weichtiere, Quallen Lophohelia prolifera, Leptocyathus elegans, Cyathina cylindrica, Balanophyllia floridana, Rhizotrochus fragilis, Stephanophyllia elegans, Astrocyathus paradoxus, Macandrina filograna, Madrepora fructiosa, Flabellum australe, Flabellum alabastrum, Thamnastraea arachnoides, Porites furcata, Stephanophyllia complicata, Leptopenus discus); 穢 Purix Verlag Volker Christen; German, out of copyright.