swimming bell, umbrella the main body of a jellyfish, excluding the tentacles
swimming bell, umbrella the main body of a jellyfish, excluding the tentacles
pneumatophore or sail the floating organ of siphonophores, such as the Portuguese man-of-war
pneumatophore or sail the floating organ of siphonophores, such as the Portuguese man-of-war
pneumatophore or sail the floating organ of siphonophores, such as the Portuguese man-of-war
pneumatophore or sail the floating organ of siphonophores, such as the Portuguese man-of-war