This is a list of the 44 species of Nemertea (ribbon worms, proboscis worms) found in Ireland. [1] [2]
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. They may have two types of setae, which are found on the parapodia. Acicular setae provide support. Locomotor setae are for crawling, and are the bristles that are visible on the exterior of the Polychaeta. They are cylindrical in shape, found not only in sandy areas, and they are adapted to burrow. They often cling to seagrass (posidonia) or other grass on rocks and sometimes gather in large groups.
Lineus is a genus of nemertine worms, including the bootlace worm, arguably the longest animal alive. Lineus contains the following species:
Palaeonemertea is an order of primitive nemertean worm. It may be para- or polyphyletic, consisting of three to five clades and totalling about 100 species.
Limapontiidae is a taxonomic family of small to minute sacoglossan sea slugs. These are marine opisthobranch gastropod mollusks.
Doris is a genus of sea slugs, specifically dorid nudibranchs. These animals are marine gastropod molluscs in the family Dorididae.
Phyllodoce is a genus of polychaete worms, which contains about 200 species. The prostomium bears eyes, two pairs of antennae and a pair of large retractile nuchal organs. The eversible proboscis is clearly divided into two parts.
Lineidae is a family of nemertean worms. It contains the following genera:
Eulalia is a genus of polychaete worms.
Tubulanus is a genus of primitive nemertean worms in the order Palaeonemertea.
Fabriciidae is a family of annelid worm in the class Polychaeta.
Cirratulus is a genus of annelids belonging to the family Cirratulidae.
Valencinia is a genus of worms belonging to the family Valenciniidae.