WebSep 27, 2024 · Flatworms: Definition and List of Worms. Flatworms are members of the phylum Platyhelminthes and are generally flat with soft bodies. ... the bristle worm and the tube worm. They all have segments ... WebJun 23, 2024 · Earthworms, leeches, bristle worms, and sandworms are all worms in the phylum Annelida. Collectively, marine annelids are called polychaetes . One …
Phylum Examples, Classification & List - Video & Lesson Transcript ...
Polychaeta is a paraphyletic class of generally marine annelid worms, commonly called bristle worms or polychaetes (/ˈpɒlɪˌkiːts/). 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 are described in this … See more Polychaetes are segmented worms, generally less than 10 cm (4 in) in length, although ranging at the extremes from 1 mm (0.04 in) to 3 m (10 ft), in Eunice aphroditois. They can sometimes be brightly coloured, … See more • One notable polychaete, the Pompeii worm (Alvinella pompejana), is endemic to the hydrothermal vents of the Pacific Ocean. Pompeii worms are among the most heat-tolerant complex animals known. • A recently discovered genus, Osedax, … See more • Aelosoma • Edith Berkeley • Australonuphis See more Polychaetes are extremely variable in both form and lifestyle, and include a few taxa that swim among the plankton or above the abyssal plain. Most burrow or build tubes in the sediment, and some live as commensals. A few species, roughly 80 (less than 0.5% of … See more Most polychaetes have separate sexes, rather than being hermaphroditic. The most primitive species have a pair of gonads in every segment, but most species exhibit some … See more Stem-group polychaete fossils are known from the Sirius Passet Lagerstätte, a rich, sedimentary deposit in Greenland tentatively dated to … See more • World Polychaeta Database • Special issue of Marine Ecology dedicated to polychaetes • Marine Polychaete Larva, a guide to the marine zooplankton of south eastern Australia See more WebPhylum Platyhelminthes. FLATWORMS -Turbellaria -Monogenea -Trematodes -Cestodes . ... SEGMENTED WORMS -Polychaeta -Oligochaeta -Hirudinea . Class Polychaeta Marine Bristle Worms, Ex. Nereis virens. Class Oligochaeta. Earthworms and Freshwater forms Ex. Lumbricus . joy grover highbury
Bristle Worm - Reefs.com
WebThe polychaete worms or “bristleworms” (class Polychaeta) are the largest group in the phylum Annelida. Polychaete (from the Greek root words poly meaning many and chaeta meaning bristle) annelid worms are so named because most of their segments have bristles called chatae or setae. Figure 3.44 shows two examples of polychaete setae. WebNereididae - Bristle Worms (Polychaetes) Invert PDF . Select a category. Polychaetes belong the phylum Annelida, the segmented worms. The phylum also includes the classes Hirudinea, which contain the leeches, and the Oligochaeta, the earthworms. The class Polychaeta are the marine worms, such as the nereids (sandworms) and glycerids … WebM.E. Benbow, M.D. McIntosh, in Encyclopedia of Inland Waters, 2009 Annelida The freshwater Annelida are best represented by three major classes: Polychaeta (bristle … joygrow take apart toys