Ole Theodor Jensen Mortensen, also known as Theodor Mortensen (22 February 1868 – 3 April 1952) was a

Danish Danish may refer to: * Something of, from, or related to the country of Denmark People * A national or citizen of Denmark, also called a "Dane," see Demographics of Denmark * Culture of Denmark * Danish people or Danes, people with a Danish a ...

scientist and professor at the

Zoological Museum, Copenhagen The Copenhagen Zoological Museum ( Danish: ''Zoologisk Museum'') is a part of the Natural History Museum of Denmark, which is affiliated with the University of Copenhagen. History The Zoological Museum It is among the world's oldest natural his ...

. He specialized in

sea urchin Sea urchins () are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard shells (tests) of ...

s (Echinoidea) and provided an enormous marine collection to the museum. He collected many sea urchin species on his expeditions between 1899–1930.Mortensen
Echinoids.nl Mortensen is the author of ''A Monograph of the echinoidea'' and ''Report on the echinoidea collected by the United States fisheries steamer "Albatross" during the Philippine expedition, 1907–1910''. Frog '' Sylvirana mortenseni'', also known as Mortensen's frog, is named in his honour.

References

External links

Mortensen, Dr Ole Theodor Jensen
Nationaal Herbarium Nederland {{DEFAULTSORT:Mortensen Danish zoologists 1868 births 1952 deaths