Vielkernige Amöbe. Bildung von Pseudopodien eines jungen Plasmodiums. Verschmelzung zweier Plasmodien, Knospenbildung eines großen Netzplasmodiums, im Wasser schwebende "Strahlenkugel". Mit Zeitraffung.

Corallomyxa mutabilis is multinuclear and forms large plasmodia which grow indefinitely, with a compact but mostly net-shaped appearance. If plasmodia touch they can fuse. Reproduction is by budding. Branches rise vertically from the plasmodium and, after a certain time, detach themselves and float freely in the seawater.