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Myrianida pachycera
Image courtesy of Leslie Harris, Natural History Museum of Los Angeles County
Myrianida pachycera
Taxonomic Group: Annelids-Polychaetes


Myrianida pachycera is a marine polychaete which belongs to the Syllidae family. It is frequently photographed because of its bright colors and unusual appearance. It was first described from Shark Bay, Australia and is believed to be native to the Indo-Pacific. Populations in Hawaii are considered introduced and other non-native locations include California and Florida. It occurs in warm-temperate to tropical climates and can be found in a variety of habitats including rocky reefs, oyster beds, coral reefs, muddy-silty bottoms, marinas, docks and ships’ hulls. No economic or ecological impacts have been reported for this species.

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Fofonoff PW, Ruiz GM, Steves B, Simkanin C, & Carlton JT. .
National Exotic Marine and Estuarine Species Information System.
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Marine Invasions Lab
Smithsonian Environmental Research Center

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