The present study identified an undescribed myxozoan parasite species infecting Hoplias malabaricus specimens collected from the Arari River, in the municipality of Cachoeira do Arari in the state of Pará, northern Brazil. Thirty specimens were necropsied to search for microparasite, and when plasmodium found, material was collected for analysis via light microscopy, histology and molecular biology methodologies. Macroscopic p...

The fish fauna of the basin of the Amazon River is one of most diverse of any region on Earth and hosts a parasite fauna that is poorly studied. One group of fish parasites is the Myxosporea, a class of the phylum Cnidaria, which are obligate endoparasites. The present study investigated myxozoans found in specimens of the Neotropical catfish Ageneiosus inermis collected in Marajó Bay, off Humaitá Beach. A total of 25 A. inerm...