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The origins of the belief are wrapped in obscurity. [2] A prominent early mention, a Babylonian cuneiform tablet titled "The Legend of the Worm" (sometimes erroneously dated to Sumerian times [3]), recounts how the tooth worm drinks the blood and eats the roots of the teeth – causing caries and periodontitis: "After Anu [had created heaven],
Gongylonema pulchrum was first named and presented with its own species by Molin in 1857. The first reported case was in 1850 by Dr. Joseph Leidy, when he identified a worm "obtained from the mouth of a child" from the Philadelphia Academy (however, an earlier case may have been treated in patient Elizabeth Livingstone in the seventeenth century [2]).
Hallucigenia is a genus of lobopodian known from Cambrian aged fossils in Burgess Shale-type deposits in Canada and China, and from isolated spines around the world. [4] The generic name reflects the type species' unusual appearance and eccentric history of study; when it was erected as a genus, H. sparsa was reconstructed as an enigmatic animal upside down and back to front. [1]
Siphonophorae (from Ancient Greek φόρος (siphōn), meaning "tube" and -φόρος (-phóros), meaning "bearing" [2]) is an order within Hydrozoa, which is a class of marine organisms within the phylum Cnidaria.
Eunice aphroditois is also known as the bobbit worm [6] [7] or bobbitt worm. [8] The name is believed to be taken from the John and Lorena Bobbitt case, [9] but another possible reason for the name is the worm's jaw. It is sometimes called the sand striker [8] or trap-jaw worm. Traces of their burrows have been found among fossils near Taiwan ...
Most gnathostomulids measure 0.5 to 1 millimetre (0.02 to 0.04 in) in length. They are often slender to thread-like worms, with a generally transparent body. In many Bursovaginoidea, one of the major group of gnathostomulids, the neck region is slightly narrower than the rest of the body, giving them a distinct head. [2]
The species exist in and have adapted to various ecologies – some in marine environments as distinct as tidal zones and hydrothermal vents, others in fresh water, and yet others in moist terrestrial environments. The Annelids are bilaterally symmetrical, triploblastic, coelomate, invertebrate organisms. They also have parapodia for locomotion.
Tongue worms grow by moulting, which suggests they belong to Ecdysozoa, while other work has identified the arthropod-like nature of their larvae. [12] In general, the two current alternative interpretations are: pentastomids are highly modified and parasitic crustaceans, probably related to fish lice, or they are an ancient group of stem ...