Definition
Tethys refers to both a genus of nudibranchs (sea slugs 🐌) and a Titan goddess in Greek mythology. In marine biology, Tethys nudibranchs are known for their distinctive appearance and carnivorous diet. These sea slugs are often found in tropical and subtropical waters. The goddess Tethys was a Titaness, daughter of Uranus and Gaia, and the personification of the primal font of fresh water. So, the name connects a beautiful sea creature with ancient mythology and the essence of water itself.