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Geodia Gallery » Keyword Album: Hexabranchus sanguineusThis species of very large, strong-swimming nudibranch is one of the largest of all nudibranchs: specimens of well over 40 cm in length have been reported.The species name, sanguineus, refers to its bright red coloration, but a yellow variant also exists. This nudibranch has two very different modes of locomotion: crawling and swimming. When it crawls, the wide edges of the mantle (the parapodia) are rolled up close to the body. When the animal swims however, the red parapodia unfurl, and are whirled through the water in a spectacular undulating motion, propelling the animal forwards. The animal was given the common name

Keyword Album: Hexabranchus sanguineusThis species of very large, strong-swimming nudibranch is one of the largest of all nudibranchs: specimens of well over 40 cm in length have been reported.The species name, sanguineus, refers to its bright red coloration, but a yellow variant also exists. This nudibranch has two very different modes of locomotion: crawling and swimming. When it crawls, the wide edges of the mantle (the parapodia) are rolled up close to the body. When the animal swims however, the red parapodia unfurl, and are whirled through the water in a spectacular undulating motion, propelling the animal forwards. The animal was given the common name

Date: 07/07/2025
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