In 1555 Olaus Magnus wrote of a marine worm which was apparently 17.76 metres (58.3 ft) long ("40 cubits"), about … See more

The typical nemertean body is very thin in proportion to its length. The smallest are a few millimeters long, most are less than 20 centimetres (7.9 in), and several exceed 1 metre (3.3 ft). The longest animal ever found, at 5… See more

Most nemerteans are marine animals that burrow in sediments, lurk in crevices between shells, stones or the holdfasts of algae or sessile animals. Some live deep in the open oceans, and have gelatinous bodies. Oth… See more

Traditional taxonomic classification has divided the group into two classes and four orders:
• Class Anopla ("unarmed"). Includes animals with proboscis without stylet, and a mouth underneat… See more

As nemerteans are mostly soft-bodied, one would expect fossils of them to be extremely rare. Knaust (2010) reported nemertean fossils and traces from the Middle Triassic of Germany. One might expect the … See more

• Emplectonema neesii
• Lineus longissimus
• Parborlasia corrugatus See more

• The Marine Biological Laboratory: Phylum Nemertea (Nemertinea, Nemertini, Rhynchocoela)
• Nemertea LifeDesk
• Video of a Nemertea in Puget Sound… See more