Literature
  • 1974a
  • Behaviour patterns in associations and interactions with other animals. pp. 281-312. In: L. Muscatine and H. M. Lenhoff (eds.), Coelenterate Biology, Reviews and New Perspectives. Academic Press, London and New York.
  • 1979
  • Beitrage zur Differentialdiagnose, Morphologie und Evolution der Edwardsiidae (Actiniaria, Anthozoa), 1. Die Gattung Alfredus nov. gen. mit der Typusart A. lucifugus (Fischer, 1888). Z. zool. Syst. Evolut.-forsch. 17: 211-220.
  • 1823
  • Beschreibung einiger neuen Mollusken und Zoophyten. Nova Acta Acad. Caesar. Leop. Carol. 11: 2: 273-314.
  • , 1976
  • British Opisthobranch Molluscs. Synopses of the British Fauna, No. 8. Linn. Soc. Academic Press, London and New York: 203 pp., 1 pl.