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Elongated glowing blue spotted siphonophore with vivid orange-red internal organs floating in dark ocean water

Red-spotted siphonophore

Agalma okenii

Not on exhibit
Animal type
Invertebrates
Ecosystem
Deep sea
Relatives
Other siphonophores
Diet
Large zooplankton including copepods and other crustaceans
Range
Worldwide (except for polar waters) from the surface to 1,300 ft. (400 m)
Size
Up to 12 inches (30 cm) in length

Meet the red-spotted siphonophore

By day, this predator reels in its long tentacles and drifts. At night, it travels up near the surface to feed. There, those tentacles unroll and spread out like a dangling spider’s web to catch a meal.

Up next in deep sea

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Woolly siphonophore

This delicate drifter swims in open water and stretches to half the length of a school bus. (Image © MBARI)

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