Louis Marie Adolphe Olivier Édouard Joubin (27 February 1861 in Épinal – 24 April 1935 in Paris)[1] was a professor at the Muséum national d'Histoire naturelle in Paris.
[2] He served as an assistant to Henri de Lacaze-Duthiers, subsequently becoming director of the laboratories at Banyuls-sur-Mer (1882) and Roscoff (1884).
[4] In 1906 he was chosen by Albert I, Prince of Monaco to be in charge of instruction at the Institut océanographique.
[3] In 1905 he was named president of the Société zoologique de France.
[3] Joubin's squid (Joubiniteuthis portieri) is named for him,[5] as is Anoxycalyx joubini, a hexactinellid sponge whose lifespan is purportedly 10,000 years.