Henri de Lacaze-Duthiers

Later on, with Jules Haime (1824–1856), he travelled to the Balearic Islands to study marine life. In 1854, he returned to Paris as an assistant to Henri Milne-Edwards (1800–1885), and soon afterwards became a professor of zoology in Lille. In 1865, he succeeded Achille Valenciennes (1794–1865) as chair of histoire naturelle des mollusques, des vers et des zoophytes at the National Museum of Natural History, France, and in 1868 became a professor at the University of Paris. In 1871, he was elected to French Academy of Sciences in the department of anatomy and zoology. • Illustration — Bronze bust of Lacaze-Duthiers Lacaze-Duthiers is remembered for his study of the anatomy and developmental history of mussels, coral, snails, brachiopods and other invertebrate marine animals. In 1858, he discovered three mollusks in the Mediterranean that produced purple-blue dyes. One of the species, named murex trunculus, was the source of the distinctive purple-blue dye used by the ancient Phoenicians and Canaanites. He realised the dying process could be used to create a photographic image in purple-blue dye which he named the Mucographé process. Examples are preserved in the Sorbonne and the Royal Society in London. He conducted pioneer exploration of marine life of coastal Algeria, that included scientific studies of coral. A result of this research was the publication of "Histoire naturelle du corail" (1864). He was the founder of two laboratories devoted to marine biology; the biological station at Roscoff in 1872, and the Arago laboratory at Banyuls-sur-Mer in 1882. A number of species bear his name, a few of them being: Strophomenia lacazei, Convoluta lacazi and Dileptus lacazei. In 1872, he founded the journal "Archives de zoologie expérimentale et générale" (Archives of Experimental and General Zoology).

Henri de Lacaze-Duthiers studied at University of Paris. The recorded working language is French. The field of work recorded is zoology. Employment is recorded with University of Paris, Lille University of Science and Technology and Muséum national d'histoire naturelle. Positions recorded include president of the French Academy of Sciences and director. Distinctions recorded are Foreign Member of the Royal Society and Grand Officer of the Legion of Honour.

• Name — Henri de Lacaze-Duthiers • Born — 15 May 1821 • Birthplace — Montpezat, France • Died — 21 July 1901 • Citizenship — France • Fields — Biology, zoology • Thesis Title — Recherches sur l'armure génitale femelle des insectes • Thesis Url — https: patrimoine.sorbonne-universite.fr/idurl/1/1436 • Thesis Year — 1853

Henri de Lacaze-Duthiers worked in zoology. He was employed by University of Paris, Lille University of Science and Technology and Muséum national d'histoire naturelle. Recorded positions include president of the French Academy of Sciences and director. He belonged to Royal Society, Lille Academy of Sciences, French Academy of Sciences, Royal Swedish Academy of Sciences and American Academy of Arts and Sciences.

Henri de Lacaze-Duthiers is recorded with the occupation university teacher. Recorded as having received Foreign Member of the Royal Society and Grand Officer of the Legion of Honour.