Redescription and molecular identification of Isospora feroxis Berto, Luz, Flausino, Ferreira & Lopes, 2009 (Eimeriidae) from tyrant-flycatchers (Tyrannoidea) in South America Carlos Nei Ortúzar-FerreiraEricson Ramos de MelloBruno Pereira Berto OriginalPaper 06 May 2021 Pages: 333 - 341
New monogeneans from the bathydemersal southern African endemic catshark, Holohalaelurus regani (Gilchrist, 1922) David B. VaughanKevin W. ChristisonHaakon Hansen OriginalPaper 11 May 2021 Pages: 343 - 355
Bicentenariella n. g. (Monogenea: Dactylogyridae) including descriptions of three new species and two new combinations from serranid fishes (Actinopterygii: Serranidae: Anthiinae) in the South American Pacific Ocean Celso L. CrucesJhon D. CheroJosé L. Luque OriginalPaper 04 June 2021 Pages: 357 - 367
Sea lice (Copepoda: Caligidae) from South Africa, with descriptions of two new species of Caligus Polly M. HayesKevin W. ChristisonGeoffrey A. Boxshall OriginalPaper Open access 26 June 2021 Pages: 369 - 397
Gorgorhynchoides pseudocarangis n. sp. (Acanthocephala: Isthmosacanthidae) from Pseudocaranx dentex (Carangidae) in southeast Queensland, Australia, with comments on the Isthmosacanthidae Daniel C. HustonLesley R. Smales OriginalPaper 29 May 2021 Pages: 399 - 412
Two species of philometrid nematodes (Philometridae) newly recorded from marine fishes off South Australia, including Philometra inconveniens n. sp. from Hyporhamphus melanochir (Valenciennes) (Hemiramphidae) František MoravecDiane P. BartonShokoofeh Shamsi OriginalPaper 27 May 2021 Pages: 413 - 422
Characterisation of myxozoan fauna of western mosquitofish, Gambusia affinis (Baird and Gerard) (Cyprinodontiformes: Poeciliidae), inhabiting experimental catfish ponds in Mississippi, USA Justin M. StilwellThomas G. RosserMatt J. Griffin OriginalPaper 10 June 2021 Pages: 423 - 441
Records of two gonad-infecting species of Philometra (Nematoda: Philometridae) from marine fishes off Iraq, including the description of Philometra parabrevicollis n. sp. from the bigeye snapper Lutjanus lutjanus Bloch (Pisces, Lutjanidae) František MoravecJawad A. MizherAtheer H. Ali OriginalPaper 12 June 2021 Pages: 443 - 453
Phylogenetic affinities of Forticulcitinae (Haploporidae) parasites of mullet from the Americas, with the description of three new species and notes on the genera and key species Leopoldo Andrade-GómezM. T. González-GarcíaM. García-Varela OriginalPaper 19 June 2021 Pages: 455 - 476
A new species of Serpentirhabdias Tkach, Kuzmin et Snyder, 2014 (Nematoda: Rhabdiasidae) parasitic in the herald snake, Crotaphopeltis hotamboeia (Laurenti) (Reptilia: Serpentes: Colubridae) in South Africa Yuriy KuzminLouis du PreezRoman Svitin OriginalPaper 06 July 2021 Pages: 477 - 485
Global distribution and host range of the endoparasitic mite genus Locustacarus (Acari: Podapolipidae) with description of a new species from Iran parasitizing grasshoppers (Orthoptera: Acrididae) Bahman RahmatzaeiHamidreza HajiqanbarMartin Husemann OriginalPaper 02 July 2021 Pages: 487 - 501
Three new species of Philocorydoras Suriano, 1986 (Monogenoidea: Dactylogyridae) infecting the gills of callichthyids (Actinopterygii: Callichthyidae) from the Peruvian Amazonia Germán Augusto Murrieta Morey OriginalPaper 14 July 2021 Pages: 503 - 511
