First report of <em>Dendrorchis retrobiloba</em> Volonterio & Ponce de León, 2005 (Digenea, Gorgoderidae) in Astyanax aff. fasciatus (Cuvier, 1819) (Characiformes, Characidae) from southern Brazil

Check List 15(3): 357-361, doi: 10.15560/15.3.357

First report of Dendrorchis retrobiloba Volonterio & Ponce de León, 2005 (Digenea, Gorgoderidae) in Astyanax aff. fasciatus (Cuvier, 1819) (Characiformes, Characidae) from southern Brazil

Moisés Gallas^‡, Laura Roberta Pinto Utz^§

‡ Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil§ Pontifícia Universidade Católica do Rio Grande do Sul, Rio Grande do Sul, Brazil

Corresponding author: Moisés Gallas ( mgallas88@gmail.com )

Academic editor: Fernando Carbayo

This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Citation: Gallas M, Utz LRP (2019) First report of Dendrorchis retrobiloba Volonterio & Ponce de León, 2005 (Digenea, Gorgoderidae) in Astyanax aff. fasciatus (Cuvier, 1819) (Characiformes, Characidae) from southern Brazil. Check List 15(3): 357-361. https://doi.org/10.15560/15.3.357

Abstract

Dendrorchis retrobiloba Volonterio & Ponce de León, 2005 was first described from the swim bladder of Astyanax fasciatus (Cuvier, 1819) from Montevideo, Uruguay. In this study, we necropsied specimens of A. aff. fasciatus collected from Lake Guaíba, in Rio Grande do Sul, Brazil, for the analysis of their helminths. The digeneans were identified as D. retrobiloba by their elongated body, oral sucker longer than ventral sucker, and 2 posterior lobes. This is the first report of D. retrobiloba in A. aff. fasciatus from Lake Guaíba and extends the known geographic distribution of this parasite.

Keywords

Characid, digenean, endoparasite, Neotropical Region, trematode