Mortensen, T. (1951). Report on the Echinoidea collected by the "Atlantide" Expedition. Scientific results of the Danish Expedition to the coasts of tropical West Africa. Arlantide Report. 2: 293-303.
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Mortensen, T.
1951
Report on the Echinoidea collected by the "Atlantide" Expedition. Scientific results of the Danish Expedition to the coasts of tropical West Africa