Preliminary report on the echini collected, in 1902, among the Hawaiian Islands, by the U. S. Fish Commission steamer , in charge of Commander Chauncey Thomas, U. S. N., commandingv. 50No. 8231–259
Agassiz, Alexander and Clark, Hubert Lyman. 1907. "Preliminary report on the echini collected, in 1902, among the Hawaiian Islands, by the U. S. Fish Commission steamer Albatross, in charge of Commander Chauncey Thomas, U. S. N., commanding." Bulletin of the Museum of Comparative Zoology, 50, (8) 231–259.