1. Development and medusa-bud formation in the Hydromedusae;Berrill;Q. Rev. Biol.,1950
2. Growth, Development, and Pattern;Berrill,1961
3. Motile sexual stages and evolution of Leptomedusae (Cnidaria);Boero;Boll. Zool.,1987
4. Le cycle biologique de Limnocnida tanganjicae;Bouillon;Bull. Acad. R. Soc. Congo.,1955
5. Sur le cycle biologique de Eirene hexanemalis (Goette, 1886) (Eirenidae, Leptomédusae, Hydrozoa, Cnidaria);Boullion;Cah. Biol. Mar.,1983