Lumbriculus variegatus

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Template:Taxobox begin Template:Taxobox begin placement Template:Taxobox regnum entry Template:Taxobox phylum entry Template:Taxobox classis entry Template:Taxobox subclassis entry Template:Taxobox ordo entry Template:Taxobox familia entry Template:Taxobox genus entry Template:Taxobox species entry Template:Taxobox end placement Template:Taxobox section binomial Template:Taxobox end The California blackworm, also known as Lumbricus variegatus, is a type of worm that lives in shallow water marshes, ponds, and swamps. They feed off of microorganisms.

California blackworms have the ability to regenerate-to regrow segments.

Blackworms have chaetae, the equivalent of an earthworm's setae. Blackworms sense movement by photoreceptors, and to swim away from any predators, they swim in a 'corkscrew' fashion. For gas exchange, they form a right angle with their posterior above the surface of the water.

On average, an adult blackworm can have from 150 segments to 250.