Literature
- Cooper, G.A. and D.C.T. Forsyth 1963. Continuous Plankton Records: Contributions towards a Plankton Atlas of the NE Atlantic and the North Sea, Part VII: The seasonal and annual distribution of the Pteropod Pneumodermopsis, Keferstein. Bulletin of Marine Ecology, 67: 31-38.
- Fraser, J.H. 1950. List of rare exotic species found in the plankton by the Scottish research vessels in 1949. Annales Biologiques, Vol. VI: 95-99. Conseil Permanent pour l'Exploration de la Mer, Kopenhagen.
- Morton, J.E. 1957a. Opisthobranchia. Order Gymnosomata, Families Pneumodermatidae, Cliopsidae. Fiches d'Identification du Zooplancton, 79 (1957). Conseil International pour l'Exploration de la Mer, Kopenhagen.
- van der Spoel, S., L. Newman and K.W. Estep 1997. Pelagic Molluscs of the World. World Biodiversity Database CD-ROM Series. Version 1.0. ETI, University of Amsterdam, Amsterdam.