Finding of nymphs of the family Sebekidae (Crustacea: Pentastomida) infecting Phalloceros harpagos (Poeciliidae) from the Parque Nacional Iguazú, Argentina

CROCI, YASMIN; MONTES, MIGUEL MARTIN; MARTORELLI, SERGIO; CASCIOTTA, JORGE; AGUILAR-AGUILAR, ROGELIO; BARNECHE, JORGE

Conferencia; 8th Conference of Poecilid Biologist; 2019

In a search for parasites on fishes from National Park Iguazu (Argentina) aPentastomid nymph was found. in the visceral cavity of Phalloceros harpagosThey were then examined in a light microscopy after clarified in lactophenol,and under SEM. The presence of four principals hooks with an accessory spineeach, and sinuous alimentary channel as long as the body allow to identificatethis parasite inside the Sebekidae Family. A molecular study was performed intwo specimens using the 28S nuclear gen. The phylogenetic Bayesian analysisgive a tree that put together our parasites with Alofia merki with a 12% geneticdistance (p-value). This differences along with the nymph morphology made usguess could be belong to Deisignia genus (reported as turtle parasite fromSudamerica) or perhaps, a new genus. New morphological and molecular studieson adults Pentastomids from P. N. Iguazu will be necessary for could bringsome clarity about the specific determination of this nymph.