Record Unit 202, United States National Museum, Section of Corals, Annual Reports, 1931-1962
The United States National Museum's collection of corals was originally entrusted to the care of the Department of Marine Invertebrates. Of particular importance in that collection were the corals collected by the United States Exploring Expedition, 1838-1842. In 1914, Marine Invertebrates was merged with the Division of Mollusks to form a single Division of Marine Invertebrates. In 1921, the Division of Mollusks was reestablished and the coral and helminthological collections were turned over to it.