Werner, B. (1984). Stamm Cnidaria, Nesseltiere. H.-E. Gruner (Ed), Lehrbuch der Speziellen Zoologie (co-ordinated by A. Kaestner), Band I, Wirbellosee Tiere, 2 Teil, Cnidaria, Ctenophora, Mesozoa, Plathelminthes, Nemertini, Entoprocta, Nemathelminthes, Priapulida. Fisher, Stuttgart, p. 621.
364335
Werner, B.
1984
Stamm Cnidaria, Nesseltiere. H.-E. Gruner (Ed), Lehrbuch der Speziellen Zoologie (co-ordinated by A. Kaestner), Band I, Wirbellosee Tiere, 2 Teil, Cnidaria, Ctenophora, Mesozoa, Plathelminthes, Nemertini, Entoprocta, Nemathelminthes, Priapulida. Fisher, Stuttgart, p. 621.