Myxobolus absonus sp. n. (Myxozoa: Myxosporea) Parasitizing Pimelodus maculatus (Siluriformes: Pimelodidae), a South American Freshwater Fish

Memórias do Instituto Oswaldo Cruz

Eduardo F Cellere¹  Nelson S Cordeiro¹  Edson A Adriano¹ 

[1] ,Universidade Estadual de Campinas Instituto de Biologia Departamento de ParasitologiaCampinas SP ,Brasil

关键词: Myxozoa;    Myxosporea;    Myxobolus absonus sp. n.;    Pimelodus maculatus;    Brazil;    South America;   

DOI  :  10.1590/S0074-02762002000100012

来源: SciELO

【 摘 要 】

A new myxoporean species is described from a freshwater fish in Brazil. Myxobolus absonus sp. n. was found infecting Pimelodus maculatus captured in the river Piracicaba, State of São Paulo, Brazil. Cysts were found free in the opercular cavity. The spores are large (length-15.7 ± 1.5 µm, width-10.2 ± 0.7 µm; mean ± S.D.) and oval in shape, with the anterior end slightly pointed. The spore valves are relatively thin, smooth, and asymmetrical in a frontal view. The polar capsules are pyriform in shape, and unequal in size; the largest are 6.4 ± 0.7 µm long and 3.6 ± 0.5 µm wide, while the smallest are 4.2 ± 0.6 µm long and 2.5 ± 0.5 µm wide.

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