May 11
seen from Japan
seen from Singapore
seen from United States
seen from Brazil
seen from China
seen from China
seen from Netherlands
seen from United States
seen from Netherlands
seen from India
seen from United States
seen from India
seen from Germany
seen from United States
seen from Singapore
seen from United States
seen from United States
seen from United States
seen from Poland
seen from United States
Martian Fauna: a giant sea-slug from Lieutenant Gullivar Jones: His Vacation (1905) by Edwin Lester Arnold.
"nothing living anywhere but a monstrous kind of sea-slug, as big as a dog, battening on the waterside garbage"
Page illustrating several species of nudibrachs (also known by the easier to remember name sea-slugs) from the German biologist Ernst Haeckel book Kunstformen der Natur (Art Forms of Nature) published between 1899 and 1904.