| Citation | Tokioka, T., 1974 On the specific validity in species pairs or trios of plankton animals, distributed respectively in different but adjoining water masses, as seen in chaetognaths. Publications of the Seto Marine Biological Laboratory 21(5-6):393-408. |
| Ref. | 95958 Tokioka, T., 1974 |
| Page | 396-398 |
| Named Used as Valid | Sagitta friderici |
| Locality | |
| Distribution | Eastern Pacific. |