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These giant earthworms average 1 metre (3.3 ft) long and 2 centimetres (0.79 in) in diameter and can reach 3 metres (9.8 ft) in length; however, their body is able to expand and contract making them appear much larger. On average they weigh about 200 grams (0.44 lb).
Diplocardia meansi, the Means's giant earthworm, or Rich Mountain giant earthworm, is a species of earthworm endemic to the United States. It is the second longest earthworm in North America. It was discovered by D. Bruce Means on June 11, 1973, in Polk County, Arkansas. [1] and later described by Gates in 1977.
Driloleirus is an earthworm genus in the family Megascolecidae. This genus includes at least two species: [1] Driloleirus americanus – giant Palouse earthworm, Washington giant earthworm; Driloleirus macelfreshi – Oregon giant earthworm
The giant Palouse earthworm or Washington giant earthworm (Driloleirus americanus, meaning lily-like worm [2]) is a species of earthworm belonging to the genus Driloleirus inhabiting the Palouse region of Eastern Washington and North Idaho, in the United States. The worm was discovered in 1897 by Frank Smith near Pullman, Washington. It can ...
Samuel James is an American scientist, a researcher specializing in evolutionary biology, focusing on earthworm taxonomy.James, with fellow researchers, has discovered numerous species of annelids, including Diplocardia californiana, [1] Diplocardia woodi, [1] Diplocardia montana, [1] and a new species related to the Giant Palouse earthworm.
Both male and female reproductive organs are present in earthworms because they are monoecious. To breed, two earthworms exchange sperm. Long after they are separated, the egg case is secreted. It forms a ring around the worm, then the worm removes the ring from its body and injects its own eggs and the other worm's sperm into it.
Rhinodrilus fafner is a presumed extinct giant earthworm of the family Glossoscolecidae.It is only known by the badly preserved holotype discovered in 1912 near Belo Horizonte in the Brazilian state of Minas Gerais and described in 1918 by German zoologist Wilhelm Michaelsen (1860–1937) from the National History Museum in Hamburg.
Lumbricus badensis is a type of giant earthworm, a species of annelid.It is endemic to the upper-elevation spruce forests of Germany's Black Forest, where its common name is Badischer Riesenregenwurm ("giant rainworm of Baden").