title: Redescription of Gymnorhynchus isuri (Cestoda: Trypanorhyncha) from Isurus oxyrinchus (Elasmobranchii: Lamnidae).
abstract: Specimens of the elasmobranch, Isurus oxyrinchus Rafinesque, captured in 1999 in the state of Santa Catarina, Brazil, were parasitized with the poecilacanthoid trypanorhynch cestode Gymnorhynchus isuri Robinson, 1959, that is redescribed here. New details of scolex and proglottid morphology are given. These details are mainly related to tentacle armature, terminal genitalia and observations of external morphology of proglottids.
authors.affiliation: Laboratório de Helmintos Parasitos de Vertebrados, Departamento de Helmintologia, Instituto Oswaldo Cruz - Fiocruz, Avenida Brasil 4365, 21045-900, Rio de Janeiro, RJ, Brazil. knoffm@ioc.fiocruz.br
authors.forename: Marcelo
authors.initials: M
authors.lastname: Knoff
authors.forename: Sérgio Carmona de São
authors.initials: SC
authors.lastname: Clemente
authors.forename: Roberto Magalhães
authors.initials: RM
authors.lastname: Pinto
authors.forename: Reinalda Mariza
authors.initials: RM
authors.lastname: Lanfredi
authors.forename: Delir Corrêa
authors.initials: DC
authors.lastname: Gomes
mesh_terms: D000818:Animals; D002589:Cestoda / Q000145:classification* / Q000648:ultrastructure; D002590:Cestode Infections / Q000469:parasitology / Q000662:veterinary*; D018940:Elasmobranchii / Q000469:parasitology*; D005393:Fish Diseases / Q000469:parasitology*