Page last updated Wed 05 Feb 2020


Image from Micrographia Gallery.

Use the links to navigate the hierarchy of invertebrate classification.

  Family Dalyelliidae

Genus Castrella

    Species C. pinguis -- Wisconsin!
    Species C. graffi -- North America.
    Species C. groenlandica -- North America.
    Species C. truncata -- North America.
    Species C. alba
    Species C. cylindrica
    Species C. lutheri
    Species C. vernalis

Taxon Information

The Genus Castrella has been reported (or is assumed) to occur in fresh waters. This taxon has been reported from Wisconsin.

(These statements were generated automatically from the WInvertebrates database.)

Literature Records

  • Castrella, (Artois et al., 2013).
  • Castrella, [North America] (Kolasa & Tyler, 2010).
  • Castrella, [Wisconsin] (Watermolen, 2005).
  • Castrella, about 2 species [North America] (Smith, 2001).
  • Castrella, (Hyman & Jones, 1959).


  • Artois, T., E. Schockaert & S. Tyler. 2013. World Checklist of Freshwater Turbellaria. World Wide Web electronic publication. 59 pp. [Available online]
  • Kolasa, J. & S. Tyler. 2010. Flatworms: Turbellarians and Nemerteans. [in] J.H. Thorp & A.P. Covich (eds.). Ecology and Classification of North American Freshwater Invertebrates, 3rd edition: 143-161.
  • Watermolen, D.J. 2005. Aquatic and terrestrial flatworm (Platyhelminthes, Turbellaria) and ribbon worm (Nemertea) records from Wisconsin. Research/Management Findings, Wisconsin DNR (55). 8 pp.
  • Smith, D.G. 2001. Platyhelminthes (free-living flatworms). Pennak's Freshwater Invertebrates of the United States, 4th edition: 77-108.
  • Hyman, L.H. & E.R. Jones. 1959. Turbellaria. [in] W.T. Edmondson (ed.). Ward & Whipple Fresh-Water Biology, 2nd edition: 323-365.

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