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Bispira volutacornis, sometimes known by the common names twin fan worm [2] or spiral fan worm, is a type of tube worm found in the shallow sublittoral zone of the eastern Atlantic Ocean. Bispira volutacornis has a parchment-like tube with a mucoid outer layer which is often coated with mud or silt. The tube is usually concealed in a crevice ...
Lanice conchilega, commonly known as the sand mason worm, is a species of burrowing marine polychaete worm. It builds a characteristic tube which projects from the seabed, consisting of cemented sand grains and shell fragments with a fringe at the top. Polychaetes, or marine bristle worms, have elongated bodies divided into many segments.
Schistosoma intercalatum is a parasitic worm found in parts of western and central Africa. There are two strains: the Lower Guinea strain and the Zaire strain. S. intercalatum is one of the major agents of the rectal form of schistosomiasis, also called bilharzia.
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The pinworm (species Enterobius vermicularis), also known as threadworm (in the United Kingdom, Australia and New Zealand) or seatworm, is a parasitic worm.It is a nematode (roundworm) and a common intestinal parasite or helminth, especially in humans. [7]
Pinworm infection occurs worldwide, [10] and is the most common helminth (i.e., parasitic worm) infection in the United States and Western Europe. [18] In the United States, a study by the Center of Disease Control reported an overall incidence rate of 11.4% among people of all ages. [ 18 ]
[2] [14] [15] Located deep in the buccal cavity are eight to 10 teeth that are not thought to be used for attachment. [1] The adult male is about half the length of the female. Case reports have found male worms ranging from 3–6.3 mm in length and 360-380 μm in width. The larger females were reported to be 8.7-23.5 mm long and 550-570 μm wide.
Platynereis dumerilii is a small marine ragworm: Males reach a length of 2 to 3 cm, while females reach a length of 3 to 4 cm. [9] Like a number of invertebrate phyla, Platynereis dumerilii has an axochord, a paired longitudinal muscle that displays striking similarities to the notochord regarding position, developmental origin, and expression profile. [10]