Eugen von Daday or Jenő von Daday (1855–1920) was a

Romanian Romanian may refer to: *anything of, from, or related to the country and nation of Romania **Romanians, an ethnic group **Romanian language, a Romance language *** Romanian dialects, variants of the Romanian language **Romanian cuisine, traditiona ...

professor of

zoology Zoology ()The pronunciation of zoology as is usually regarded as nonstandard, though it is not uncommon. is the branch of biology that studies the animal kingdom, including the structure, embryology, evolution, classification, habits, and ...

Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croa ...

in the late 19th and early 20th century. Daday was an expert on aquatic

invertebrate Invertebrates are a paraphyletic group of animals that neither possess nor develop a vertebral column (commonly known as a ''backbone'' or ''spine''), derived from the notochord. This is a grouping including all animals apart from the chordate ...

s, particularly

crustacean Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean gro ...

s. Daday collected and identified many

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

and

genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial ...

within the borders of the Hungarian empire, and received samples of invertebrates from collectors around the world. After his death in 1920, Daday's collection of crustaceans was acquired by the

Hungarian Natural History Museum The Hungarian Natural History Museum ( hu, Magyar Természettudományi Múzeum) in Budapest, dating back to 1802, houses the largest natural history collections of Hungary and the region. History of the museum Foundation In 1802, Count Fere ...

References

* 1855 births 1920 deaths 19th-century Hungarian zoologists Romanian zoologists Carcinologists Hungarian people of Romanian descent 20th-century Hungarian zoologists {{Romania-scientist-stub