This spectacular siphonophore is a sight to see!⁠ ⁠ The red siphonophore (Marrus claudanielis) lives in the midwater—the vast expanse of open water 200 meters (660 feet) below the surface and 200 meters above the seafloor—and never comes in contact with hard surfaces. Like other siphonophores, it’s hard to collect and study in the lab, but even observations in the field prove tricky for MBARI scientists. This species is sensitive to light and if we’re not careful, the lights on the ROV cause the