Hansen, Hans Jacob, 1912, 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, ” from August, 1899, to March, 1900, Commander Jefferson F. Moser, U. S. N., Commanding. XVI. Reports on the scientific results of the expedition to the eastern tropical Pacific, in charge of Alexander Agassiz, by the U. S. Fish Commission Steamer “ Albatross, ” from October, 1904, to March, 1905, Lieut. Commander L. M. Garrett, U. S. N., Commanding. XXVII. The Schizopoda

Hansen, Hans Jacob, 1912, 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, ” from August, 1899, to March, 1900, Commander Jefferson F. Moser, U. S. N., Commanding. XVI. Reports on the scientific results of the expedition to the eastern tropical Pacific, in charge of Alexander Agassiz, by the U. S. Fish Commission Steamer “ Albatross, ” from October, 1904, to March, 1905, Lieut. Commander L. M. Garrett, U. S. N., Commanding. XXVII. The Schizopoda, Memoirs of the Museum of Comparative Zoölogy, at Harvard College 35, No. 4, pp. 173-296