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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. Many have patterns of yellow, orange, red and green coloration.
The bootlace worm (Lineus longissimus) is a species of ribbon worm and one of the longest known animals, with specimens up to 55 m (180 ft) long being reported. [1] Its mucus is highly toxic. [ 2 ]
The majority of enoplan ribbon worms are marine and benthic, but there are approximately 100 named and described species of pelagic nemerteans. These creatures inhabit the water column of the world oceans, commonly found at depths of between a few hundred feet and several thousand feet, and they are most abundant at 2,130 to 8,200 ft (625 to ...
Cerebratulus lacteus, the milky nemertean or milky ribbon worm, is a proboscis worm in the family Lineidae. This ribbon worm has a wide geographical range on both sides of the northern Atlantic Ocean.
Parborlasia corrugatus is a proboscis worm in the family Lineidae. [1] It was formerly placed in family Cerebratulidae. This species of proboscis or ribbon worm can grow to 2 metres (6 ft 7 in) in length, and lives in marine environments down to 3,590 metres (11,780 ft). This scavenger and predator is widely distributed in cold southern oceans. [2]
Tubulanus polymorphus is a species of ribbon worm in the phylum Nemertea. It is found in the northern Atlantic Ocean and the northern Pacific Ocean. It occurs on the lower shore down to about 50 m (160 ft), on sand or gravel, under stones and among seaweed.
This ribbon worm is a detritivore and grazer. [1] It is rather fragile, and any attempt to collect it is likely to end with the worm breaking in pieces. [2] However, it is able to regenerate itself from any fragment that is at least half as long as the worm's diameter; each piece can develop into a complete new worm in three to four weeks. [2]
Prostoma jenningsi is a species of ribbon worm known only from one site near Croston, Lancashire. It was described in 1971, and is believed to be the county's only endemic species. It grows up to 20 mm (0.8 in) long, with 4–6 black eyespots, and has a long eversible proboscis.