Folia Parasitologica, vol. 54 (2007), issue 3

Folia Parasitologica 54[3] 208-214 (2007) | DOI: 10.14411/fp.2007.028

Redescription of Gymnorhynchus isuri (Cestoda: Trypanorhyncha) from Isurus oxyrinchus (Elasmobranchii: Lamnidae)

Marcelo Knoff1, Sérgio Carmonade São Clemente2, Roberto Magalhães Pinto1, Reinalda Mariza Lanfredi3, Delir Corrêa Gomes1
1 Laboratório de Helmintos Parasitos de Vertebrados, Departamento de Helmintologia, Instituto Oswaldo Cruz - Fiocruz, Avenida Brasil 4365, 21045-900, Rio de Janeiro, RJ, Brazil
2 Laboratório de Inspeção e Tecnologia de Alimentos, Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brazil 64, 24230-340, Niterói, RJ, Brazil
3 Laboratório de Biologia de Helmintos Otto Wucherer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 21949-900, Rio de Janeiro, RJ, Brazil

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.

Keywords: Cestoda, Trypanorhyncha, Gymnorhynchus isuri, Elasmobranchii, Isurus oxyrinchus, Santa Catarina, Brazil

Received: March 23, 2007; Accepted: June 4, 2007; Published: September 1, 2007


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