Boone, L. (1938). The marine Algae, Coelenterata, Annelida Polychaeta, Echinodermata, Crustacea and Mollusca of the world cruises of the yachts Ara 1928-1929, and Alva, 1931 Alva Mediterranean cruise, and Alva South American cruise, 1933, William K. Vanderbilt, commanding. Part IV-Echinodermata. Bull. Vanderbilt Mar. Mus. Huntingdon 7: pp. 115-193.
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Boone, L.; Alva, W. K. V.
1938
The marine Algae, Coelenterata, Annelida Polychaeta, Echinodermata, Crustacea and Mollusca of the world cruises of the yachts Ara 1928-1929, Alva Mediterranean cruise, and Alva South American cruise