Siphonophores - The longest animals on the planet Cousins of corals, siphonophores are colonies of specialized individuals called zoids. Some catch and digest their prey, others swim, or lay eggs or sperm.
Dinoflagellate Ceratium extensum(Photo : Sophie Marro)
Instrumented buoy (Photo : David Luquet)
Dinoflagellate Ceratium azoricum (Photo : Sophie Marro)
Dinoflagellate Ceratium macroceros var macroceros (Photo : Sophie Marro)