BioStor
 | 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 A Agassiz and H L Clark (1907) Bulletin of the Museum of Comparative Zoology, Harvard 50: 231-259 |
 | 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 (1907) Bulletin of The Museum of Comparative Zoology At Harvard College 50: 229-272 |
 | Hawaiian and other Pacific echini Alexander Agassiz and Hubert Lyman Clark (1908) Memoirs of the Museum of Comparative Zoölogy at Harvard College 34(2): 49-132 |