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Nemertea is a phylum of animals also known as ribbon worms or proboscis worms, consisting of about 1300 known species. [ 2 ] [ 3 ] Most ribbon worms are very slim, usually only a few millimeters wide, although a few have relatively short but wide bodies.
There are also examples of macrophagus hoplonemerteans that engulf the entire prey after paralyzing it with a blow by the stylet. Freshwater hoplonemerteans are known to feed on oligochaetes, unicellular organisms, insect larvae, and other crustaceans. Very little is known about the ecology of pelagic nemerteans, including diet and feeding ...
Anopla (for changes in taxonomy, see reference from 2019) has long been used as name for a class of marine worms of the phylum Nemertea, characterized by the absence of stylets on the proboscis, the mouth being below or behind the brain, and by having separate openings for the mouth and proboscis.
Nemertea genera (1 C, 45 P) H. Heteronemertea (1 C, 16 P) Hoplonemertea (2 C, 4 P) M. Marine nemerteans (1 C, 2 P)
Heteronemertea is a monophyletic order of about 500 species of nemertean worms. It contains genera such as Lineus and Cerebratulus, and includes the largest and most muscular nemerteans.
Paranemertes peregrina is a species of Nemertea, or ribbon worm, in the family Neesiidae. [1] Description.
Palaeonemertea is a class of primitive nemertean worm. It may be para- or polyphyletic, consisting of three to five clades and totalling about 100 species.. These worms have several apparently simple features and, as their name suggests, they are often considered to be the most primitive nemerteans.
Geonemertes pelaensis is a species of terrestrial Nemertea. [1] Superficially, Geonemertes pelaensis resembles a land flatworm (family Geoplanidae) and lives in the same habitat, but it has an anterior exertile proboscis, whereas flatworms have a pharynx located in their ventral side at midlength of body. The number of eyes this nemertean can ...