Colourful slug-like creature with tentacles and blue body
https://files.mastodon.social/media_attachments/files/111/432/259/323/823/363/original/a5582263f7e93bef.jpeg
Nudibranchs as pictured by a Japanese illustrator named Kumataro Ito, artist for the USS Albatross’ Philippine Expedition, 1907–10. More of his stunning images here:
https://publicdomainreview.org/collections/kumataro-itos-illustrations-of-nudibranchs/
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