Exoschizonidae

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Exoschizonidae
Scientific classification
Domain: Eukaryota
Kingdom: Chromalveolata
Superphylum: Alveolata
Phylum: Apicomplexa
Levine 1970
Class: Conoidasida
Levine 1988
Subclass: Gregarinasina
Dufour 1828
Order: Archigregarinorida
Grassé & Schrével 1953
Family: Exoschizonidae
Levine 1971
Genus

Exoschizon

The Exoschizonidae are a family in the phylum Apicomplexa.

History

This family was created by Levine in 1971.[1]

Taxonomy

There is one genus currently recognised in this family - Exoschizon. This genus has only one species - Exoschizon siphonosomae - which was described by Hukui in 1939.[2]

Description

This species was found in the intestine of a sipunculid worm (Siphonosoma cumanense) in Japan.

The meronts measure 90 µm × 15 µm. There are ~13 longitudinal striations per side.

The meronts and gamonts are similarly shaped.

Transmission is presumably by the orofaecal route.

References

  1. Levine ND (1971) Taxonomy of the Archigregarinorida and Selenidiidae (Protozoa, Apicomplexa) J Euk Microbiol 18 (4) 704–717 DOI: 10.1111/j.1550-7408.1971.tb03401.x
  2. Hukui (1939) J Fac Sci Hiroshima Univ 7: 17
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