Ruby seadragon

The ruby seadragon (Phyllopteryx dewysea) is a marine fish in the family Syngnathidae, which includes seadragons, seahorses, and pipefishes. This is the third known species of seadragon, described in 2015, and the first to be discovered in 150 years. It has been sighted on the coast of Western Australia. As of 2025, there are significant knowledge gaps on this species, and only a few individuals have been observed in the wild.

The ruby seadragon is named to honor Mary 'Dewy' Lowe, a supporter of seadragon conservation and research.