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Polychaeta (/ ˌ p ɒ l ɪ ˈ k iː t ə /) is a paraphyletic [1] class of generally marine annelid worms, commonly called bristle worms or polychaetes (/ ˈ p ɒ l ɪ ˌ k iː t s /). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin. More than 10,000 species ...
The sea mouse is an active predator [2] feeding primarily on small crabs, hermit crabs and other polychaete worms including Pectinaria and Lumbriconereis. [2] It has been observed consuming other polychaete worms over three times its own body length. [2] Feeding activity takes place at night, with the animal partially buried in sand. [2]
Alvinella pompejana, the Pompeii worm, is a species of deep-sea polychaete worm (commonly referred to as "bristle worms"). It is an extremophile found only at hydrothermal vents in the Pacific Ocean , discovered in the early 1980s off the Galápagos Islands by French marine biologists .
Palola viridis, (or Eunice viridis) commonly known as the palolo worm, Samoan palolo worm, balolo, wawo, or nyale, is a Polychaeta species from the waters of some of the Pacific islands, including Samoa, Tonga, Fiji, Vanuatu, the Solomon Islands, Papua New Guinea, and the islands of the maritime Southeast Asia (which are part of Indonesia, Timor-Leste and the Philippines).
Aphrodita adults generally fall within a size range of 7.5 to 15 centimetres (3.0 to 5.9 in), with some growing to 30 centimetres (12 in). The body is covered in a dense mat of parapodia and setae (hairlike structures). [2]
Lanice conchilega, commonly known as the sand mason worm, is a species of burrowing marine polychaete worm. It builds a characteristic tube which projects from the seabed, consisting of cemented sand grains and shell fragments with a fringe at the top. Polychaetes, or marine bristle worms, have elongated bodies divided into many segments.
With 28 different species of fireworms and thousands of species of polychaetes in the ocean among other things, it should come as no surprise that Tunnell tells people to avoid touching stuff.
Juvenile and other worms of small size have small crowns and radioles, so prefer to capture and eat very small particles, such as bacterioplankton and single-celled phytoplankton and zooplankton. As a worm matures and grows in size, so does its crown. The larger crown allows the animal to feed on larger multicellular plankton.