What is Lumbriculus variegatus?
{{Taxobox | image = Two tailed lumbriculus variegatus 1.jpg | image_caption = With second (replacement) tail | regnum = [[Animal]]ia | phylum = [[Annelida]] | classis = [[Clitellata]] | subclassis = [[Oligochaeta]] | ordo = [[Lumbriculida]] | familia = [[Lumbriculidae]] | genus = '''''Lumbriculus''''' | species = ''L. variegatus'' | binomial = ''Lumbriculus variegatus'' }} '''''Lumbricus terrestris''''' (also known as the '''California blackworm''' or '''bloodworm''') is a species of [[worm]]. These worms live in shallow [[water]] such as [[marshes]], [[pond]]s and [[swamp]]s. They feed on [[microorganism]]s. Adult blackworms can lay 150 to 250 eggs.<ref>{{Cite web |url=http://www.expertsvar.se/4.fe857aa117caa42683800010.html?prid=11440 |title=Press Release, University of Gothenburg, April 22, 2009 |access-date=July 26, 2012 |archive-date=October 7, 2011 |archive-url=https://web.archive.org/web/20111007052543/http://www.expertsvar.se/4.fe857aa117caa42683800010.html?prid=11440 |url-status=dead }}</ref><ref>{{Cite web |url=http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WNH-4V76240-1&_user=10&_coverDate=05%2F31%2F2009&_rdoc=6&_fmt=high&_orig=browse&_srch=doc-info(%23toc%236963%232009%23999489997%231066160%23FLA%23display%23Volume)&_cdi=6963&_sort=d&_docanchor=&_ct=27&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=aa28c784e110592133cda1439b64e581 |title=Genetic variation in the popular lab worm Lumbriculus variegatus (Annelida: Clitellata: Lumbriculidae) reveals cryptic speciation, Daniel R. Gustafssona, David A. Priceb and Christer Erséus, University of Gothenburg |access-date=2012-07-26 |archive-date=2009-09-10 |archive-url=https://web.archive.org/web/20090910100104/http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WNH-4V76240-1&_user=10&_coverDate=05%2F31%2F2009&_rdoc=6&_fmt=high&_orig=browse&_srch=doc-info(%23toc%236963%232009%23999489997%231066160%23FLA%23display%23