Nereis is a genus of polychaete worms in the family Nereididae. It comprises many species, most of which are marine. Nereis possess setae and parapodia for locomotion and gas exchange. [1] . They may have two types of setae, which are found …

Nereis or Neanthes is a marine polychaete annelid that lives in burrows in sea bottom and comes out in night to prey upon small animals. N. virens (Sandworm), N. pelagica (Type-species) and N. succinea (Clam worm) are common species of Nereis.

Nereis is a genus of polychaete worms in the family Nereidae. It comprises many species, most of which are marine. Nereis possess setae and parapodia for locomotion.

The Nereids (Greek: Νηρηΐδες Nereides, sg. Νηρηΐς Nereis) are sea nymphs, female spirits of sea waters, the 50 daughters of Nereus and Doris [source: Wikipedia]

Nereis vexillosa (common name: Mussel worm) belongs to the phylum Annelida, a group known as the segmented worms. It is generally iridescent green and can reach 30 cm in length. It can be distinguished by the size of the upper ligules on the notopodia of the posterior region of the body. The upper ligules are much larger than the lower ligules.

External features of nereis (clam worm) Procedure. For studying external feature take a formaline preserved animal. Fix it in a dissecting tray and study the following : Body form: Worm like. Body divided into head and similar 200 segments. Head: It consist of prostomium or pre-oral lobe and peristomium. Prostomium is the first segment and ...

Nereididae is among the most familiar of marine annelid families, common and well-studied in most marine environments but paradoxically no recent key or identification guide exists to the world’s genera.

In this article we will discuss about the T. S. body and p arapodium of nereis. 1. It is the slide of T. S. of Nereis. 2. The body wall is comprised of a’ outermost thin cuticle, a layer c epidermis and a thick layer of circular muscles. 3.

2024年7月31日 · Explore the Nereis specimen with diagrams, classification, and comments. Learn about its habitat, structure, & significance in Annelida.

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 ).