Henri de Lacaze-Duthiers
Encyclopedia
Biologist
A biologist is a scientist devoted to and producing results in biology through the study of life. Typically biologists study organisms and their relationship to their environment. Biologists involved in basic research attempt to discover underlying mechanisms that govern how organisms work...
, anatomist and zoologist who was born in Montpezat in the department of Lot-et-Garonne
Lot-et-Garonne
Lot-et-Garonne is a department in the southwest of France named after the Lot and Garonne rivers.-History:Lot-et-Garonne is one of the original 83 departments created during the French Revolution on March 4, 1790...
. He studied medicine in Paris
Paris
Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...
, and worked at Necker Hospital under Armand Trousseau
Armand Trousseau
Armand Trousseau was a French internist. His contributions to medicine include Trousseau sign of malignancy, Trousseau sign of latent tetany, Trousseau-Lallemand bodies , and the truism, "use new drugs quickly, while they still work."-Biography:A native of Tours, Indre-et-Loire, Armand Trousseau...
(1801–1867). Later, with Jules Haime (1824–1856), he travelled to the Balearic Islands
Balearic Islands
The Balearic Islands are an archipelago of Spain in the western Mediterranean Sea, near the eastern coast of the Iberian Peninsula.The four largest islands are: Majorca, Minorca, Ibiza and Formentera. The archipelago forms an autonomous community and a province of Spain with Palma as the capital...
to study marine life. In 1854 he returned to Paris as an assistant to Henri Milne-Edwards
Henri Milne-Edwards
Henri Milne-Edwards was an eminent French zoologist.Henri Milne-Edwards was the 27th child of William Edwards, an English planter and militia colonel in Jamaica and Elisabeth Vaux, a French. He was born in Bruges, Belgium, where his parents had retired. At that time, Bruges was a part of the...
(1800–1885), and soon afterwards became a professor of zoology in Lille
Université Lille Nord de France
The University of Lille -Nord de France , located in Lille, France, is a center for higher education, academic research and doctoral studies located over multiple campuses in the Academie de Lille....
.
In 1865 he succeeded Achille Valenciennes
Achille Valenciennes
Achille Valenciennes was a French zoologist.Valenciennes was born in Paris, and studied under Georges Cuvier. Valenciennes' study of parasitic worms in humans made an important contribution to the study of parasitology...
(1794–1865) as chair of Natural History of Mollusks, Worms and Zoophytes at the Muséum national d'histoire naturelle
Muséum national d'histoire naturelle
The Muséum national d'Histoire naturelle is the National Museum of Natural History in Paris, France.- History :The museum was formally founded on 10 June 1793, during the French Revolution...
, and in 1868 became a professor at the University of Paris
University of Paris
The University of Paris was a university located in Paris, France and one of the earliest to be established in Europe. It was founded in the mid 12th century, and officially recognized as a university probably between 1160 and 1250...
. In 1871 he was elected to French Academy of Sciences
French Academy of Sciences
The French Academy of Sciences is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research...
in the department of anatomy and zoology.
Lacaze-Duthiers is remembered for his study of the anatomy and developmental history of mussel
Mussel
The common name mussel is used for members of several families of clams or bivalvia mollusca, from saltwater and freshwater habitats. These groups have in common a shell whose outline is elongated and asymmetrical compared with other edible clams, which are often more or less rounded or oval.The...
s, coral
Coral
Corals are marine animals in class Anthozoa of phylum Cnidaria typically living in compact colonies of many identical individual "polyps". The group includes the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton.A coral "head" is a colony of...
, snail
Snail
Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...
s, brachiopod
Brachiopod
Brachiopods are a phylum of marine animals that have hard "valves" on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, while the front can be opened for feeding or closed for protection...
s and other lower 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 Phoenicia
Phoenicia
Phoenicia , was an ancient civilization in Canaan which covered most of the western, coastal part of the Fertile Crescent. Several major Phoenician cities were built on the coastline of the Mediterranean. It was an enterprising maritime trading culture that spread across the Mediterranean from 1550...
ns and Canaan
Canaan
Canaan is a historical region roughly corresponding to modern-day Israel, Palestine, Lebanon, and the western parts of Jordan...
ites. He also performed pioneer exploration of marine life of coastal Algeria.
He founded two laboratories devoted to marine biology
Marine biology
Marine biology is the scientific study of organisms in the ocean or other marine or brackish bodies of water. Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather...
; the biological station at Roscoff
Station biologique de Roscoff
The Station biologique de Roscoff is a french marine biology and oceanography research and teaching center. Founded by Henri de Lacaze-Duthiers in 1872, it is at the present time affiliated to the Université Pierre et Marie Curie , the Institut National des Sciences de l'Univers et de...
in 1876, and the Arago laboratory at Banyuls-sur-Mer
Banyuls-sur-Mer
Banyuls-sur-Mer is a commune in the Pyrénées-Orientales department in southern France.-Geography:Banyuls-sur-Mer is neighbored by Cerbère, Port-Vendres, Argelès-sur-Mer and Collioure. The region is known for its wines, such as the sweet wine Banyuls. An aquatic museum with aquarium is located in...
in 1882. With his student Pruvot Georges (1852–1924), he founded the journal Archives de zoologie expérimentale et générale (Archives of Experimental and General Zoology). One of his better known written works was an 1863 treatise on the natural history
Natural history
Natural history is the scientific research of plants or animals, leaning more towards observational rather than experimental methods of study, and encompasses more research published in magazines than in academic journals. Grouped among the natural sciences, natural history is the systematic study...
of coral called Histoire naturelle du corail.