| Authors(s) | Tokioka, T. |
| Year | 1955a |
| Title | On some plankton animals collected by the Syunkotu-Maru in May-June 1954, 2. Shells of Atlantidae (Heteropoda) . Publ. Seto mar. biol. Lab. 4(2-3): 227-235, 5 figs, pls 15-16. |
| Authors(s) | Tokioka, T. |
| Year | 1955a |
| Title | On some plankton animals collected by the Syunkotu-Maru in May-June 1954, 2. Shells of Atlantidae (Heteropoda) . Publ. Seto mar. biol. Lab. 4(2-3): 227-235, 5 figs, pls 15-16. |