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The worm has 21 segments and 16 of them bear chaetae (the bristled setae of polychaetes). The face is somewhat flattened. The body is cylindrical, but tapers slightly toward the posterior end. In life, the worm is transparent, with ring-shaped integument (scaly ridges) along the back, and discontinuous brown stripe markings.
Lumbriculus variegatus, also known as the blackworm or California blackworm or Australian Blackworm, is a species of worm inhabiting North America, Europe, and Australia. It lives in shallow-water marshes, ponds, and swamps, feeding on microorganisms and organic material. The maximum length of a specimen is 10 cm (3.9 in).
(Top) 1 Species. 2 Life in a burrow. 3 Reproduction. ... Arenicola, also known as sandworms, is a genus of capitellid annelid worms comprising the lugworms and black ...
Chaoborus is a genus of midges in the family Chaoboridae.The larvae are known as glassworms because they are transparent.They can be found commonly in lakes all over the world and can be up to 2 cm (0.8 in).
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]).
Onychophora / ɒ n ɪ ˈ k ɒ f ə r ə / (from Ancient Greek: ονυχής, onyches, "claws"; and φέρειν, pherein, "to carry"), commonly known as velvet worms (for their velvety texture and somewhat wormlike appearance) or more ambiguously as peripatus / p ə ˈ r ɪ p ə t ə s / (after the first described genus, Peripatus), is a phylum of elongate, soft-bodied, many-legged animals.
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The worm has a hydrostatic skeleton and moves by longitudinal and circular muscular contractions. Setae – tiny hair-like projections – provide leverage against the surrounding soil. Surface movements on moist, flat terrain were reported at a speed of 20 m/h and, based on measurements of the length of the trail, nocturnal activity away from ...