the Piracicaba. From 1931, Ihering dedicated himself exclusively to the economics and biology of fish farming. Ilhering learnt the Tupi-Guarani language, so that he could understand the etymologicalical roots of the names of Brazilian animals and from this an important work was born: "Dicionário dos animais do Brasil ("Dictionary of the Animals of Brazil"), which was published by the University of Brasilia in the year following Ilhering's death, 1940. From 1932 until 1937 Ihering was the head of the Technical Commission of Fisheries of the Nordeste, assisting rapid growth in the pisciculture in that region and in the world, through the development of hypophysation, a technique of artificially encouraging fish to reproduce by removing the hypophysis or pituitary gland from a fish, preparing it and then injecting the preparation into another mature fish, of either sex, to promote final maturation and spawning. During this period he oversaw the establishment of fish farms in Pirassununga and Porto Alegre. He died suddenly in 1939. Ihering was a member of the Brazilian Academy of Sciences, the Society of Biology of São Paulo, the Clube Zoológico do Brasil, the Limnological Society of America and the American Fisheries Society. He was awarded an honorary doctor by the University of Giessen. Legacy Ilhering's name has been given to 23 species of the Brazilian fauna, including 3 insects, 10 fish and a reptile. The Brazilian Catfish Pareiorhina rudolphi was named after him. The Brazilian Society of Zoology, instituted the Rodolpho von Ihering Prize for the best zoology article, book or book chapter published in Brazil in each year. The Rodolpho von Ihering Ichthyology Research Center in Pentecoste, Ceará is named after him; while the Rodolpho von Ihering Library, remains in the collection of the Experimental Station of Biology and Fisheries of Pirassununga, in 1981. Publications The principal published works of Ihering are: O Livrinho das Aves (1914). Fauna do Brasil (1917). Da Vida Dos Peixes (1923). Contos de um Naturalista (1924). No Campo e na Floresta (1927). Da Vida dos Nossos Animais (1934). Dicionário dos animais do Brasil (1940). See also :Category:Taxa named by Rodolpho von Ihering References 20th-century Brazilian zoologists Brazilian ichthyologists Brazilian people of German descent 1883 births 1939 deaths