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A common siphonophore in the ocean

Common siphonophore

Nanomia septata

On view
Into the Deep
Animal type
Invertebrates
Ecosystem
Deep sea
Relatives
Other siphonophores; Order: Siphonophorae
Diet
Small crustacean zooplankton
Range
Worldwide from the surface to 6,600 ft. (2,000 m)
Size
12 inches (30 cm) in length

Meet the common siphonophore

This animal swims to the surface to feed and sets fine tentacles adrift like fishing lines. The tips resemble tiny shrimplike creatures—a tasty bait. The predator lies in wait, then reels in its prey.

Up next in deep sea

Animal

Tower jelly

See that dangling fringe? Those tentacles catch and sweep bits of food into the tower jelly’s bell.

Keep exploring

Animal

Giant siphonophore

When startled, the giant siphonophore glows with bright blue light.

Animal

Deep-sea anglerfish

The "fishing rod" growing from the female anglerfish's snout ends in a glowing blob of light.

Animal

Giant isopod

The giant isopod roams the deep seafloor feasting on fish carcasses and other debris that fall from above.