Nereis

Nereis
Eunereis longissima
Scientific classification
Kingdom: Animalia Phylum: Annelida Class: Polychaeta Order: Phyllodocida Family: Nereidae Genus: Nereis Linnaeus, 1758
Species
about 120

Nereis is a genus of polychaete worms in the family Nereidae. It comprises many species, most of which are marine, including the sandworm (Nereis virens) and the common clam worm (Nereis succinea). Nereis possess setae and parapodia for locomotion. They may have two types of setae, which are found on the parapodia. Acicular setae provide support. Locomotor chaetae are for crawling, and are the bristles that are visible on the polchaeta\'s exterior

Nereis are osmoconformers.

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