NYMPHS OF SEBEKIDAE (CRUSTACEA: PENTASTOMIDA) AS PARASITES OF PHALLOCEROS HARPAGOS FROM THE PARQUE NACIONAL IGUAZU, ARGENTINA

AGUILAR-AGUILAR ROGELIO; BARNECHE JORGE; MONTES M MARTIN; CASCIOTA JORGE; CROCI YASMIN; MARTORELLI SERGIO R

Mexico DF

Conferencia; 8th. Conference of Poecilid Biologists; 2019

UNAM

In a search for parasites on fishes from National Park Iguazu (Argentina) a Pentastomid nymph was found.. in the visceral cavity of Phalloceros harpagos They were then examined in a light microscopy after clarified in lactophenol, and under SEM. The presence of four principals hooks with an accessory small hooks each, and sinuous alimentary channel as long as the body allow to identificate this parasite inside the Sebekidae Family. A molecular study was performed in two specimens using the 28S nuclear gen. The phylogenetic Bayesian analysis give a tree that put together our parasites with Alofia merki with a 12% genetic distance (p-value). This differences along with the nymph morphology made us guess could be belong to Deisignia genus (reported as turtle parasite from Sudamerica) or perhaps, a new genus. New morphological and molecular studies on adults Pentastomids from P. N. Iguazu will be necessary for could bring some clarity about the specific determination of this nymph.