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An account of the Deep-Sea Ophiuroidea collected by the Royal Indian Marine Survey ...
By: Koehler, R.
Publication info: Calcutta,1899.
Contributed by: Smithsonian Institution Libraries
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Astéries, ophiures, et échinides / by R. Koehler.
By: Koehler, R. - British Antarctic Expedition
Publication info: London :W. Heinemann,1911.
Contributed by: Smithsonian Institution Libraries
BHL Collections: Smithsonian Institution Libraries
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Illustrations of the shallow-water Ophiuroidea: collected by the Royal Indian Marine Survey ship Investigator/ by R. Koehler ...
By: Koehler, R.
Publication info: Calcutta,Printed by order of the Trustees of the Indian Museum,1900.
Contributed by: Smithsonian Institution Libraries
BHL Collections: Smithsonian Institution Libraries
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