Taxonomic reports of Otobothrioidea (Eucestoda, Trypanorhyncha) from elasmobranch fishes of the southern coast off Brazil

Memórias do Instituto Oswaldo Cruz

Marcelo Knoff²  Sérgio Carmona De São Clemente¹  Roberto Magalhães Pinto²  Reinalda Marisa Lanfredi¹  Delir Corrêa Gomes² 

[1] ,Instituto Oswaldo Cruz-Fiocruz Departamento de Helmintologia Laboratório de Helmintos Parasitos de VertebradosRio de Janeiro RJ ,Brasil

关键词: Trypanorhyncha/Otobothrioidea;    taxonomic reports;    elasmobranchs;    Brazil;   

DOI  :  10.1590/S0074-02762004000100006

来源: SciELO

【 摘 要 】

Specimens of elasmobranch fishes, captured in the states of Paraná and Santa Catarina, of the southern coast off Brazil, represented by three families, four genera, and four species, were parasitized with otobothrioid trypanorhynch cestodes: Heptranchias perlo (Bonnaterre, 1788), Squalus sp. and Carcharhinus signatus (Poey, 1868) were parasitized with Progrillotia dollfusi Carvajal & Rego,1987; Prionace glauca (Linnaeus, 1758) with Molicola horridus (Goodsir, 1841) Dollfus, 1942. Details of internal morphology and/or scolex and/or proglottids surface ultrastructure, that expanded the description of M. horridus, through observations with lightfield, and/or scanning eletronic microscopy, are provided. The known geographical distribution for the species M. horridus is enlarged. P. dollfusi is reported for the first time in elasmobranchs.

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