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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
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.
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 ...
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Giant Palouse earthworm - A vulnerable North American species. Oregon giant earthworm - A relative of the Palouse earthworm. Specimens have been recorded at 1.3 m (4 feet) long. Lake Pedder earthworm - Listed as the first "extinct" worm species from its original unique Tasmanian habitat. Lumbricus badensis - Giant (Badish) earthworm.
The Oregon giant earthworm was first described by Frank Smith in 1937 from a specimen found near Salem, Oregon in 1903. The species was named in honor of its collector, F. M. McElfresh. [ 2 ] Like its cousin, the giant Palouse earthworm ( Driloleirus americanus ) of Washington, this species can grow to lengths in excess of 3 feet (0.91 m) and ...
Up to 60 cm in length, this earthworm is one of the largest European species. [ 1 ] [ 2 ] It weighs between 25 and 35 g and lives in subterranean tubes which are up to 2.5 m deep. It feeds on organic matter it ingests from the surface and aerates the soil as it moves through it, contributing to the formation of humus .