in a parasitic study on five sharks (carcharhinus macloti) caught from the iranian coasts of persian gulf, two of five sharks appeared to have nematode in their intestine. using light microscopy, the nematode was identified as acanthocheilus rotundatus. a. rotundatus  is characterised by 3.3-4.5 cm in length, semithick cuticle, small lips, semicircular and tri-lobed pseudolabia (not offset from...

In a parasitic study on five Sharks (Carcharhinus macloti) caught from the Iranian coasts of Persian Gulf, two of five sharks appeared to have nematode in their intestine. Using light microscopy, the nematode was identified as Acanthocheilus rotundatus. A. rotundatus  is characterised by 3.3-4.5 cm in length, semithick cuticle, small lips, semicircular and tri-lobed pseudolabia (not offset from...

The starry smooth-hound Mustelus asterias is a near-threatened coastal shark in Europe, whose parasitofauna largely unknown. We studied metazoan parasites of 20 immature sharks (13 males and seven females) from the English Channel we examined their relationships with host condition use as bioindicators. All were parasitized by one to six taxa among twelve recorded whole sampling (one trematode,...

Intestinal helminths are reported from four species of scincid lizards from southern Africa: Mabuya occidentalis, Mabuya spilogaster, Mabuya striata and Mabuya variegata. The helminth fauna consisted of one species of Cestoda, Oochoristica truncata and five species of Nematoda, Abbreviata paradoxa, Maxvachonia dimorpha, Parapharyngodon rotundatus, Spauligodon petersi and Thubunaea fitzsimonsi. ...

The 31 species of Microctonus Wesmael that occur in North America are taxonomically treated. Six are described as new: M. cappilicrus, M. gouleti, M. passi, M. portalensis, M. rotundatus, and M. sharkeyi. Microctonus zimmermanni Loan is considered a junior synonym of M. brevipetiolatus (Thomson) and M. barri Loan is considered a junior synonym of M. muesebecki Loan. The European Perilitus altic...

This study was the first investigation on the parasites of Triportheus rotundatus, a Characiformes fish from the Amazon, in Brazil. All the fish collected (100%) in a tributary from the Amazon River system were infected by one or more parasite species. The mean species richness of parasites was 4.9 ± 0.9, the Brillouin index was 0.39 ± 0.16, the evenness was 0.24 ± 0.09 and the Berger-Parker do...

This report presents the first record of Tripos rotundatus (Jørgensen) Gómez in Adriatic Sea. The species was found net sample layer 50 – 100 m depth, on July 2021 at coastal southern T. probably previously mistaken as morphologically similar digitatus (Schütt) Gómez.