Publication: Clark, Hubert Lyman. 1920. Tropical Pacific Holothuroidea (Reports on the scientific results of the expedition to the Tropical Pacific, in charge of Alexander Agassiz, by the U. S. Fish Commission Steamer "Albatross,"...). Memoirs of the Museum of Comparative Zo÷logy at Harvard College, vol. 39, no. 4. 121-154.