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Scientific classification e
Kingdom: Animalia
Phylum: Cnidaria
Class: Myxozoa
Subclass: Malacosporea
Canning, Curry, Feist, Longshaw & Okamura, 2000

See text

Malacosporea is a subclass of Myxozoa.[1][2] It was allocated in the year 2000. It includes only three species, while another subclass of Myxozoa, Myxosporea, includes more than a thousand.


Malacosporea are parasites of fish and freshwater bryozoans. Tetracapsuloides bryosalmonae, the only representative of the group whose life cycle is well studied, causes proliferative disease of the kidneys in salmonids. Two stages of the life cycles of the two species in the Buddenbrockia genus are known. One of them is a saccular stage, similar to Tetracapsuloides. During the second stage the animals are mobile and superficially resemble minute worms. Buddenbrockia allmani parasitizes Lophopus crystallinus, while Buddenbrockia plumatellae parasitizes, in particular, Plumatella fungosa.



  • Tops S, Baxa DV, McDowell TS, Hedrick RP, Okamura B (2004). "Evaluation of malacosporean life cycles through transmission studies". Dis Aquat Organ. 60 (2): 109–121. 

External links

Data related to Malacosporea at Wikispecies