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polychaete

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polychaete

Any of about 5,400 species of marine worms of the annelid class Polychaeta, having a segmented body with many setae (bristles) on each segment. Species, often brightly coloured, range from less than 1 in. (2.5 cm) to about 10 ft (3 m) long. Most body segments bear two bristly parapodia (lobelike outgrowths). The head has short sensory projections and tentacles. Adults may be free-swimming or sedentary; larvae are free-swimming. Found worldwide, polychaetes are important for turning over sediment on the ocean bottom. One species, the bloodworm, is a popular saltwater fish bait. See also tube worm.
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These were made by organisms, possibly polychaete worms, which mined the original burrow fills for nutrients (Kendall, 1977).
Geology of the Parliament Buildings 5: Geology of the Manitoba ... by Young, Jeff / Geoscience Canada
A newly discovered species of the polychaete genus Vigtorniella also forms dense colonies "like lawns of orange grass around the whale skeleton," says Smith.
Decades of dinner: underwater community begins with the remains of a ... by Milius, Susan / Science News
Effects of Black Rock Harbour Dredged Material on the Histopathology of the Blue Mussel Mytilus edulis and Polychaete Worm Nephtys Incisa after Laboratory and Field Exposures.
Histopathologic and histochemical biomarker responses of Baltic clam, ... by Jackman, Paula / Environmental Health Perspectives
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