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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.
Enopla is one of the classes of the worm phylum Nemertea, ... Physical characteristics. Enoplan nemerteans are generally small, from less than 1 centimetre (0.4 in ...
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.
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.
P. peregrina is usually dark dorsally, with a brown or purple coloration. It appears peach-colored due to its lighter ventral coloration. [2] Their distinctive external features and spiral-shaped stylets make them easily recognizable. [3]
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 ...
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Prostoma graecense is a species of Nemertea in the family Prostomatidae. [2] It was once called Emea rubrum. [3] It is closely related to Prostoma eilhardi. [4] The species is distributed all across the world.