Page last updated Wed 05 Feb 2020


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  Genus Racekiela

Species R. ryderi (+ R. discoides, + R. conigera)

Taxon Information

The Species R. ryderi 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

  • Racekiela ryderi, "reported from the eastern half of North America, from Louisiana to Canada but confined to this region" (Reiswig & Ricciardi, 2010).
  • Anheteromeyenia ryderi, [Wisconsin] (Annesley et al., 2008).
  • Anheteromeyenia ryderi, [North Central United States] (Underhill et al., 1982).
  • Heteromeyenia ryderi, "Fla. to Nova Scotia, and inland at least as far as Iowa" (Jewell, 1959).
  • Parameyenia discoides, "Horseshoe Pond, Lexington Co., S.C." (Jewell, 1959).
  • Heteromeyenia conigera, "Early Co., Ga." (Jewell, 1959).


  • Reiswig, H.M. & T.M. Frost & A. Ricciardi. 2010. Porifera. [in] J.H. Thorp & A.P. Covich (eds.). Ecology and Classification of North American Freshwater Invertebrates, 3rd edition: 91-123.
  • Annesley, J., J. Jass & D. Watermolen. 2008. Wisconsin freshwater sponge species documented by scanning electron microscopy. Journal of Freshwater Ecology 23(2): 263-272. [Available online]
  • Underhill, J.C., W.D. Schmid & D.E. Gilbertson. 1982. Taxonomic Keys to the Common Animals of the North Central States, exclusive of the parasitic worms, terrestrial insects, and birds, 4th edition. 205 pp.
  • Jewell, M. 1959. Porifera. [in] W.T. Edmondson (ed.). Ward & Whipple Fresh-Water Biology, 2nd edition: 298-312.

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