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Corynosoma australe Johnston, 1937 and C. cetaceum Johnston & Best, 1942 (Acanthocephala: Polymorphidae) from marine mammals and fishes in Argentinian waters: allozyme markers and taxonomic status

A high level of genetic differentiation between the two taxa was found, suggesting a generic distinction between theTwo species, C. australe and C. cetaceum.
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The parasita Fauna of Scomber japonicus Houttuyn, 1782 (Pisces: Scombridae) in two zones of the Argentine Sea

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Larvae and adults of Hysterothylacium aduncum (Rudolphi, 1802) (Nematoda: Anisakidae) in fishes and crustaceans in the south west Atlantic.

Parasitic prevalence, mean intensity and range were calculated in relation to different geographic zones, from the Argentinean-Uruguayan Common Fishing Zone to Patagonic areas and an increase of parasitism from the northern areas southwards was observed.
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Morphotypes of Varroa destructor collected in Apis mellifera colonies from different geographic locations of Argentina

A discriminant analysis employing eight morphologic variables revealed that it is possible to differentiate morphotypes of mites in Argentina, however, the level of discrimination detected among mites population varied according to the grouping of mite’s population.
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Seasonal fluctuations in prevalence of dog intestinal parasites in public squares of Mar del Plata city, Argentina and its risk for humans.

The seasonal variation in prevalence of dog parasites results in continuous exposure to people visiting the squares, not only Mar del Plata residents but also tourists from other regions of Argentina and the world, with at least one species of parasite with sanitary risk.
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Parasites of Cynoscion guatucupa along South American Atlantic coasts: evidence for stock discrimination

Two stocks of striped weakfish Cynoscion guatucupa in the south-west Atlantic Ocean, were identified using parasites as biological tags. A total of 297 fish caught in Brazil, Uruguay and Argentina,…
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First detection of Varroa destructor resistance to coumaphos in Argentina

Results are the first report of resistance to coumaphos in V. destructor in Argentina, and LC50 increased 197–559-fold when compared to the corresponding baseline, suggesting the development of resistance.
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Genetic evidence for two sibling species within Contracaecum ogmorhini Johnston & Mawson, 1941 (Nematoda: Anisakidae) from otariid seals of boreal and austral regions

Findings support the existence of two distinct sibling species, Contracaecum ogmorhini (sensu lato) and C. margolisi n. 
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Paleoparasitological Records in a Canid Coprolite From Patagonia, Argentina

In this note, organic remains identified as a canid coprolite were examined and eggs of nematodes identified as Trichuris sp.
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Distribution patterns and interactions of cestodes in the spiral intestine of the narrownose smooth-hound shark, Mustelus schmitti Springer, 1939 (Chondrichthyes, Carcharhiniformes)

The distribution patterns and the cestode species interactions within the spiral intestine of 20 specimens of Mustelus schmitti from coastal waters off Mar del Plata, Argentina were studied and showed no evidence of niche overlap in the range of distribution of the different species.
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