Frilled Anemone (Metridium senile)

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Live Frilled Anemone (Metridium senile)
Please note this is a live marine specimen.

The Frilled Anemone (Metridium senile), also known as the Plumose Anemone, is one of Maine’s most graceful and fascinating cnidarians. Found attached to docks, floats, mooring lines, and rocky structures, this species is recognized for its tall, soft body and delicate frilled tentacles that wave gently in the current. Its color can range from brown and tan to mottled white or soft orange, depending on size and habitat. Sustainably hand-collected from the Gulf of Maine, these anemones are ideal for saltwater aquariums, classroom studies, or marine biology demonstrations. Each specimen is shipped live and ready to thrive in a well-aerated marine system.

Key Facts:
Common name: Frilled anemone, plumose anemone
Scientific name: Metridium senile
Locations: Docks, floats, mooring balls, mooring lines, and barges
Seasonality: Available year-round
Colors: Brown, tan, mottled, whitish, or orange (especially when small)
Size: 1" – 3" anemones, or clusters of ¼" – ½" animals on mussels
Collected: By hand
Quantity: Sold by the each or as clusters on blue mussel clumps
Note: This is a live marine specimen. Natural variations in size, color, and appearance from photos should be expected. If you would like any specimen preserved, please send a request to: info@gulfofme.com

Live Frilled Anemone (Metridium senile)
Please note this is a live marine specimen.

The Frilled Anemone (Metridium senile), also known as the Plumose Anemone, is one of Maine’s most graceful and fascinating cnidarians. Found attached to docks, floats, mooring lines, and rocky structures, this species is recognized for its tall, soft body and delicate frilled tentacles that wave gently in the current. Its color can range from brown and tan to mottled white or soft orange, depending on size and habitat. Sustainably hand-collected from the Gulf of Maine, these anemones are ideal for saltwater aquariums, classroom studies, or marine biology demonstrations. Each specimen is shipped live and ready to thrive in a well-aerated marine system.

Key Facts:
Common name: Frilled anemone, plumose anemone
Scientific name: Metridium senile
Locations: Docks, floats, mooring balls, mooring lines, and barges
Seasonality: Available year-round
Colors: Brown, tan, mottled, whitish, or orange (especially when small)
Size: 1" – 3" anemones, or clusters of ¼" – ½" animals on mussels
Collected: By hand
Quantity: Sold by the each or as clusters on blue mussel clumps
Note: This is a live marine specimen. Natural variations in size, color, and appearance from photos should be expected. If you would like any specimen preserved, please send a request to: info@gulfofme.com

Frilled anemone attached to a waved whelk with its tentacles retracted.

Frilled anemone attached to a waved whelk with its tentacles retracted.

Tidepool Tim says,  “Frilled anemones look like underwater palm trees! They have a beautiful white or tan crown with many hundreds of fine, fuzzy tentacles surrounding their mouth. Their column stretches quite tall and varies in color from brown, orange, white, or even palomino-colored. We find them mostly on mooring lines, float drums under docks or dock pilings where they are gently feeding on plankton in the tidal currents. In our aquaria, these little guys can skate right along on their suction disc on the glass until they find a place suitable to their liking. In the spring and summer, they reproduce jillions of tiny anemones that seem to like to colonize blue mussel clusters. Here in Cobscook Bay, the planktonic mix is full of fat copepods, many diatom species, and tons of larval invertebrate - a perfect diet for these quick growing coelenterates.”