Carl Friedrich Wilhelm Claus

Carl ( Carolus Friedrich Wilhelm ) Claus ( born January 2, 1835 in Kassel, † January 18, 1899 in Vienna) was a professor of zoology and comparative anatomy. He worked intensively with Darwinism, which he represented, but was opposed to the theories of Ernst Haeckel.

Biography

Carl Claus parents were the Münzwardein Heinrich Claus and Charlotte, born judge. His brother was the chemist Karl Ludwig Adolf Claus.

Claus studied in Marburg and Giessen Rudolf Leuckart ( 1822-1898 ). Since 1855 he was a member of the Corps Hasso Nassovia Marburg.

He taught in Marburg, Würzburg, Göttingen and Vienna and led the Austrian station for marine zoology in Trieste. The zoologist specializing in crustaceans and founded the modern classification of this group. As part of its cell research Claus coined the term Phagocyte ( intracellularly digesting blood cell; cyto from Greek: kytos = cave; phagein = eat ).

Under the guidance of Claus medical student Sigmund Freud wrote in 1877 his first scientific paper, on the basis of research he had conducted on Claus ' Trieste station on the testicle structure of the eel. Therefore, Freud received a decisive impetus for his later-developed theory of bisexuality of man.

The theory of Charles Darwin was estimated by Claus, but he saw it as still significant open questions. At the end of his life he wrote that the principle of selection

Works

Ehrentaxon

René Edouard Claparède named after him in 1863 the genus Clausia with the way Clausia lubbocki.