Ceratodictyon spongiosum Zanard. Plate LI from Icones of Japanese algae. Kintaro Okamura, author. Published in 1911. Collections of and digitalizing sponsor the Marine Biological Laboratory – Woods Hole Oceanographic Institute Library. Artwork in the public domain due to age. via https://www.biodiversitylibrary.org/page/1251055#page/12/mode/1upMartensia elegans Hering. Plate LIII from Icones of Japanese algae. Kintaro Okamura, author. Published in 1911. Collections of and digitalizing sponsor the Marine Biological Laboratory – Woods Hole Oceanographic Institute Library. Artwork in the public domain due to age. via https://www.biodiversitylibrary.org/page/1251055#page/20/mode/1upHerpopteros Zonaricola Okam. Plate LV from Icones of Japanese algae. Kintaro Okamura, author. Published in 1911. Collections of and digitalizing sponsor the Marine Biological Laboratory – Woods Hole Oceanographic Institute Library. Artwork in the public domain due to age. via https://www.biodiversitylibrary.org/page/1251055#page/32/mode/1up