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The European nightcrawler (Dendrobaena hortensis) is a medium-small earthworm averaging about 1.5 g when fully grown. Generally blueish, pink-grey in color with a banded or striped appearance, the tips of their tails are often cream or pale yellow. When the species has not been feeding, it is pale pink.
Eudrilus eugeniae, also called the "African nightcrawler", is an earthworm species native to tropical west Africa and now widespread in warm regions under vermicompost; it is an excellent source of protein and has great pharmaceutical potential.
In some areas where it is an introduced species, some people consider it to be a significant pest for out-competing native worms. [ 1 ] Through much of Europe, it is the largest naturally occurring species of earthworm , typically reaching 20 to 25 cm in length when extended.
In the tropics, the African nightcrawler Eudrilus eugeniae [70] and the Indian blue Perionyx excavatus are used. Earthworms are sold all over the world; the market is sizable. According to Doug Collicutt, "In 1980, 370 million worms were exported from Canada, with a Canadian export value of $13 million and an American retail value of $54 ...
Users refer to European nightcrawlers by a variety of other names, including dendrobaenas, dendras, Dutch nightcrawlers, and Belgian nightcrawlers. Containing water-soluble nutrients, vermicompost is a nutrient-rich organic fertilizer and soil conditioner in a form that is relatively easy for plants to absorb. [ 3 ]
The life cycle of the gapeworm is peculiar in that transmission from bird to bird may be successfully accomplished either directly (by ingesting embryonated eggs or infective larvae) or indirectly (by ingestion of earthworms containing free or encysted gapeworm larvae they had obtained by feeding on contaminated soil).
Nightcrawler, any large earthworm, especially those favored in angling Lumbricus terrestris, a globally-distributed species of earthworm, known in North America as nightcrawler or Canadian nightcrawler; Eudrilus eugeniae, the African night crawler, native to tropical West Africa; European nightcrawler, Eisenia hortensis
The worms are leaflike, elongated, and an average of 8.8 mm long (8.0–9.5 mm) and 1.7 mm wide (1.2–2.1 mm). When first passed in the feces, they were pinkish red and coiled in a "c" or "e" shape. The eggs in uteri were an average of 105 μm long (97–117 μm) and 63 μm wide (61–65 μm).