Canaania obesa (Platyhelminthes: Dicrocoeliidae): redescription and new hosts records

dc.creatorMaldonado Junior, Arnaldo
dc.creatorPinheiro, Jairo
dc.creatorSimões, Raquel de O.
dc.creatorLanfredi, Reinalda M.
dc.date2018-12-10T12:54:44Z
dc.date2018-12-10T12:54:44Z
dc.date2010
dc.date.accessioned2023-09-26T23:14:13Z
dc.date.available2023-09-26T23:14:13Z
dc.identifierMALDONADO JR., Arnaldo; et al. Canaania obesa (Platyhelminthes: Dicrocoeliidae): redescription and new hosts records. Zoologia, v.27, n.5, p.789-794, Oct. 2010.
dc.identifier1984-4670,
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/30469
dc.identifier10.1590/S1984-46702010000500015
dc.identifier1984-4689
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8888351
dc.descriptionReinalda M. Lanfredi - In memorian
dc.descriptionThe digenetic trematode Canaania obesa Travassos, 1944 (Dicrocoeliidae) was described as a parasite of the bile ducts of the rodent Akodon cursor Winge, 1887 (Cricetidae) collected in Santa Teresa, state of Espírito Santo, Brazil. In the present study, we report the occurrence of C. obesa infecting three additional sigmodontinae rodent species: Akodon montensis Thomas, 1913; Oligoryzomys nigripes Olfers, 1818 and Nectomys squamipes Brants, 1827, from three municipalities situated at Serra dos Órgãos, Rio de Janeiro, Brazil. Scanning electron microscopy showed that this helminth has a leaflike shape with conical extremities and the ventral mid body protrudes at the acetabulum level. The microtopography of the tegument shows a heterogeneous surface with smooth or wrinkled areas and several randomly distributed papillae. The cirrus is located just posterior to the oral sucker and is covered by smooth tegument without spines or papillae. The excretory pore is subterminal. The eggs are elliptic and operculate at one of the extremities. The present study adds new taxonomic characters to C. obesa. The municipalities of Nova Friburgo, Teresópolis and Sumidouro are new geographical areas of distribution, and A. montensis, O. nigripes and N. squamipes are new host records for C. obesa.
dc.formatapplication/pdf
dc.languageeng
dc.publisherPensoft Publishers
dc.rightsopen access
dc.subjectDucto biliar
dc.subjectdigenético
dc.subjectroedores
dc.subjecttrematódeo
dc.subjectsigmodontina
dc.subjectBile duct
dc.subjectdigenetic
dc.subjectrodents
dc.subjectsigmodontine
dc.subjecttrematode
dc.titleCanaania obesa (Platyhelminthes: Dicrocoeliidae): redescription and new hosts records
dc.typeArticle


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