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Two new species of Scalithrium (Cestoda: Rhinebothriidea) from rajiform batoids of the Argentine Sea.
Franzese, Sebastian; Ivanov, Veronica A.
Afiliação
  • Franzese S; Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biologa Experimental, Buenos Aires, Argentina. CONICETUniversidad de Buenos Aires, Instituto de Biodiversidad y Biologa Experimental y Aplicada (IBBEA), Buenos Aires, Argentina. . sefranze20@gmail.com.
  • Ivanov VA; Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biologa Experimental, Buenos Aires, Argentina. CONICETUniversidad de Buenos Aires, Instituto de Biodiversidad y Biologa Experimental y Aplicada (IBBEA), Buenos Aires, Argentina. . user@mapress.com.
Zootaxa ; 5005(1): 62-76, 2021 Jul 23.
Article em En | MEDLINE | ID: mdl-34811280
Two new species of Scalithrium Ball, Neifar Euzet, 2003 were found in rajiform batoids of the Argentine Sea: Scalithrium kirchneri sp. nov., parasite of the Rio skate Rioraja agassizii (Mller Henle) from waters off Buenos Aires Province, and Scalithrium ivanovae sp. nov., parasite of the La Plata skate Atlantoraja platana (Gnther) from waters off Ro Negro Province. Scalithrium kirchneri sp. nov. and S. ivanovae sp. nov. differ from their congeners by having a particular combination of features including: total length, number of loculi on the distal bothridial surface, absence of bilobed bothridia and number of testes. Additionally, S. kirchneri sp. nov. can be distinguished from S. ivanovae sp. nov. by the presence of a vaginal sphincter and seminal receptacle, by the position of the entrance of the vas deferens into the cirrus sac, and by the microthrix pattern on the proximal bothridial surface. Based on this and previous studies, we conclude that some morphological traits may not be considered as key characters for the generic diagnosis of Scalithrium due to their variability within the genus. These characters include the musculature disposition in bothridial transverse septa and position of the entrance of the vas deferens into the cirrus sac, which certainly complement other diagnostic characters at a specific level. The discovery of these two species represents the first record of the genus Scalithrium in temperate waters of the Southern Hemisphere. In addition, this study is the first to undoubtedly identify batoids from the order Rajiformes as hosts for Scalithrium.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Rajidae / Cestoides / Infecções por Cestoides / Gastrópodes / Doenças dos Peixes Limite: Animals País/Região como assunto: America do sul / Argentina Idioma: En Revista: Zootaxa Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Argentina País de publicação: Nova Zelândia
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Rajidae / Cestoides / Infecções por Cestoides / Gastrópodes / Doenças dos Peixes Limite: Animals País/Região como assunto: America do sul / Argentina Idioma: En Revista: Zootaxa Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Argentina País de publicação: Nova Zelândia