The Coccidian Genus Defretinella

Compiled by
Donald W. Duszynski1, Steve J. Upton2, and Lee Couch1

1Department of Biology, University of New Mexico
2Division of Biology, Kansas State University

Supported by NSF-PEET DEB 9521687

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Updated: 2 May 1999
Comments: (Duszynski)
or (Upton)

The monotypic genus Defretinella Hennere, 1966 is characterizated by oocysts containing >50 bivalved sporocysts, each sporocyst with numerous sporozoites. Because of the bivalved nature of the sporocysts, Levine (1983) placed this genus in close proximity to Barroussia and Goussia (Eimeria). Additional studies are warranted to determine whether this coccidian should remain aligned with the other Eimeriidae.

Defretinella eulaliae Hennere, 1966

Host: Eulalia viridis (Annelida: Polychaetasida)
References: Hennere 1966; Levine 1983


Hennere, E. 1966. Stades evolutifs de deux coccidies parasites d'annelides polychetes: Myriosporides amphiglenae, gen. n., sp. n., parasite de Amphiglena mediterranea Claparede (Sabellidae); Defretinella eulaliae, gen. n., sp. n., parasite de Eulalia viridis Muller (Phyllododidae). Comptes Rendus de l'Academie des Sciences, Series D 262: 890-893.

Levine, N.D. 1983. The genera Barrouxia, Defretinella, and Goussia of the coccidian family Barrouxiidae (Protozoa, Apicomplexa). Journal of Protozoology 30: 542-547.