. Dactylogyrid monogeneans parasitising Cyphocharax voga (Hensel) (Teleostei: Curimatidae) from the Pampas region, Argentina: new and previously described species.

TIMI JUAN TOMÁS; ROSSIN, M. ALEJANDRA

SYSTEMATIC PARASITOLOGY

SPRINGER

Lugar: Berlin; Año: 2016 vol. 93 p. 701 - 714

0165-5752

Most studies on dactylogyrid monogeneans in Argentina have been carried out during 1980sand 1990s. Many of these species have been latersynonymised and other remain under a confusingtaxonomic status, particularly those parasitisingCyphocharax voga (Hensel) (Teleostei: Curimatidae).In order to clarify the identity of dactylogyrids, newmaterial was collected from fishes in Lake Chascomu ´s, Buenos Aires Province, Argentina. A total offour species was found in the gills of C. voga. Twoknown species, Curvianchoratus singularis (Suriano,1980) Suriano, 1986 and Palombitrema triangulum(Suriano, 1981) Suriano, 1997, are redescribed andtheir generic and specific status discussed, and twonew species are described. Urocleidoides surianoae n.sp. can be distinguished from its congeners by havingan anterior medial projection in the ventral bar and alaminar ligament connecting the base of the malecopulatory organ and accessory piece. Annulotrematoides bonaerensis n. sp. differs from its congenersprincipally by having a ventral bar with an anteriormedial projection. The diversity of dactylogyridsharboured by C. voga indicates the need of furtherstudies in the Pampas region, which will provideinteresting and valuable sources of evidence for futurezoogeographical and evolutionary research on dactylogyrids in the Neotropics