Joseph Henri de Lacaze Duthiers (* 15. May 1821 in the section plumb bob et Garonne; "† 21 July 1901) was a French physiologist and zoologist.

Lacaze Duthiers studied in of Paris medicine. Afterwards it was an assistant with Henri Milne Edward and became then 1854 professor of the Zoologie in Lille, 1865 at the nature-historical museum in Paris and 1868 at the university in Paris.

On 31 July 1871 it became member of the of the sciences in the department of anatomy and Zoologie, 1893 was it even a president of the of the sciences. In addition it was member of the national de .

he discovered 1858 that three Mollusken in the Mediterranean produce magenta-blue coloring materials. One, Murex trunculus, became of it as the source of the blue magenta in the Bible (2. Mose 26) determines. In its book sur le pourpre (Paris 1859) it treated the antique

Starting from 1872 it gave the row to Archives de zoologie et out. A further book is Histoire natureal you corail (Paris 1863).

1873 it created the zoo-logical station with Roscoff at the coast of Brittany and a further with Banyuls sur Mer, whereby it donated also a large part of its private means. It was long director/conductor of the station in Roscoff. This Institut played an important role with the education of the branch of research sea biology end 19. Century.

Lacaze Duthiers is first become known by its investigations over the outside sex tools of the insects (1849-53). Later it turned and published themselves a row work over shells, snails, Brachiopoden, Ascidien, Korallen etc. it to the study of anatomy and history of the development of the low sea-animals was pioneer with the study of the Meeresfauna at the coast of Algeria.

Related links

• Station Biologique de Roscoff

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