Crystallospora

Crystallospora is a genus of Apicomplexa in the family Aggregatidae.

Crystallospora
Scientific classification
(unranked): Diaphoretickes
Clade: TSAR
Clade: SAR
Infrakingdom: Alveolata
Phylum: Apicomplexa
Class: Conoidasida
Subclass: Coccidia
Order: Eucoccidiorida
Suborder: Eimeriorina
Family: Barrouxiidae
Genus: Crystallospora
Labbé, 1896
Species:
C. cristalloides
Binomial name
Crystallospora cristalloides
(Thélohan, 1893) Dyková & Lom, 1981

History

The genus Crystallospora was created by Labbé in 1896[1] for a coccidium that Thelohan[2] had discovered in the Atlantic Ocean off France in 1893. The organism was originally called Coccidium cristalloides but Labbe renamed it Crystallospora thelohani.

This species was later transferred to Eimeria by Doflein in 1909.[3]

In 1948 Dogel found the same species in Peter the Great Gulf (Pacific Ocean) off Japan.[4]

Dyková and Lom in 1981 revived this genus because of its unique sporocyst structure.[5]

Taxonomy

There is one species in this genus.

Description

The sporocysts have four sporocysts each with two sporozoites. They are dodecahedral in shape and are composed of two hexagonal, pyrimidal valves joined at their bases by a suture.

References
  1. Labbe A (1896) Recherches Zoologiques, Cytologiques et Biologiques sur les Coccidies. Archives de Zoologie Experimentale et Generale 4: 517-654
  2. Thelohan MP (1890) Sur deux coccidies nouvelles, parasites de l'epinoche et de la sardine. C R Hebd Seances Mem Soc BioI (Paris) 42:345-348
  3. Doflein F (1909) Lehrbuch der Protozoenkune ein Darstellung der Naturgeschichte der Protozoen mit Besonderer Berucksichtigung der Parasitischen und Pathogenen Formen. II. Auflage der Protozoen als Parasiten und Krankheitserreger. Verlag von Gustav Fischer, Jena. 914
  4. Dogiel VA (1948) Parasitic protozoa of fishes from Peter the Great Bay. Izvestiya Vsesoyuznogo Nauchno-Issledovatelskogo Instituto Ozernogo i Rechnogo Rybnogo Khozyaistva 27: 17-66
  5. Dykova I, Lom J (1981) Fish coccidia: critical notes on life cycles, classification and pathogenicity. Journal of Fish Diseases 4: 487-505
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