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Scientific classification
Domain: Eukaryota
(unranked): SAR
(unranked): Alveolata
Phylum: Apicomplexa
Class: Conoidasida
Order: Protococcidiorida
Family: Eleutheroschizonidae
Genus: Defretinella
Henneré 1966

Defretinella eulaliae

Defretinella is a genus of parasitic alveolates of the phylum Apicomplexa.


This genus had been placed in the family Barrouxiidae by Levine[1] but has since been moved to the family Eleutheroschizonidae.

There is one species recognised in this genus - Defretinella eulaliae.


This species infects a polychete species - the green leaf worm (Eulalia viridis).[2]

The oocysts contain >50 bivalved sporocysts: each sporocyst in its turn contains numerous sporozoites. The sporocysts are bivalved.


  1. ^ Levine ND (1983) The genera Barrouxia, Defretinella, and Goussia of the coccidian family Barrouxiidae (Protozoa, Apicomplexa). J Euk Micro 30(3) 542–547
  2. ^ 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