Codium fragile, known commonly as green sea fingers, dead man's fingers, felty fingers,[1]forked felt-alga, stag seaweed,[2]sponge seaweed,[3]green sponge,[4]green fleece,[5]sea staghorn,[6] and oyster thief,[7] is a species of seaweed in the family Codiaceae. It originates in the Pacific Ocean near Japan and has become an invasive species on the coasts of the Northern Atlantic Ocean.
^Invasive Species in the Pacific Northwest, P. Dee Boersma, Sarah H. Reichard, Amy N. Van Buren, 2006, ISBN978-0-29598596-1, 208 at Google Books
^Guiry, M. D. Codium fragile (Suringar) Hariot, 1889. In: Guiry, M.D. & G. M. Guiry. (2013). AlgaeBase. National University of Ireland, Galway. Accessed through: World Register of Marine Species (WoRMS).