Fifteen-scaled Worm (Harmothoe imbricata)

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Live Fifteen-Scaled Worm (Harmothoe imbricata) – Maine Marine Specimen


Fifteen-scaled worms (Harmothoe imbricata) are polychaete annelids found on rocks at low tide along Maine’s rocky shores. These worms reach about 1” in length and display colors of brown, tan, and plum. Known for their overlapping dorsal scales, they are excellent specimens for marine biology studies, classroom use, and ecological research. Each specimen is hand-collected and shipped live for accurate observation of structure and behavior.

Key Facts:

  • Common name: fifteen-scaled worm

  • Scientific name: Harmothoe imbricata

  • Location: low tide, on rocks

  • Seasonality: available year-round

  • Colors: brown, tan, plum

  • Size: ~1”

  • Collected: by hand

  • Quantity: sold by the each

Note: Shipped as a live specimen. Natural variations in size and color occur.

Live Fifteen-Scaled Worm (Harmothoe imbricata) – Maine Marine Specimen


Fifteen-scaled worms (Harmothoe imbricata) are polychaete annelids found on rocks at low tide along Maine’s rocky shores. These worms reach about 1” in length and display colors of brown, tan, and plum. Known for their overlapping dorsal scales, they are excellent specimens for marine biology studies, classroom use, and ecological research. Each specimen is hand-collected and shipped live for accurate observation of structure and behavior.

Key Facts:

  • Common name: fifteen-scaled worm

  • Scientific name: Harmothoe imbricata

  • Location: low tide, on rocks

  • Seasonality: available year-round

  • Colors: brown, tan, plum

  • Size: ~1”

  • Collected: by hand

  • Quantity: sold by the each

Note: Shipped as a live specimen. Natural variations in size and color occur.

Fifteen-Scaled Worm (Harmothoe imbricata) on a rock with bryozoans on it.

Fifteen-Scaled Worm (Harmothoe imbricata) on a rock with bryozoans on it.

Tidepool Tim says,  “FIfteen-scaled worms appear to be a dark maroon or even deep plum color.  They inhabit the same rocky tidepools and lower intertidal as twelve-scaled worms but are much less apparent.  They blend in so well.  These scale worms have delicate little fringes on the ends of their parapodia. They remind me of little tassels.”