| Authors(s) | Morton, J. E. |
| Year | 1957b |
| Title | Opisthobranch Mollusca, Gymnosomata, families: Pneumodermatidae, Cliopsidae. Fiches; Cons. intern. Explor. Mer, Zooplankton-sheet 79: 1-4, 5 figs. |
| Authors(s) | Morton, J. E. |
| Year | 1957b |
| Title | Opisthobranch Mollusca, Gymnosomata, families: Pneumodermatidae, Cliopsidae. Fiches; Cons. intern. Explor. Mer, Zooplankton-sheet 79: 1-4, 5 figs. |