Serotonergic elements in the nervous system of parasite of acipenserid fishes, Acrolichanus auriculatus (Digenea: Allocreadiidae).

The trematode Acrolichanus auriculatus is a widely distributed intestine parasite of acipenserid fishes. For the first time the localization and distribution of the serotonergic nerve elements in A. auriculatus was studied using immunocytochemical method and confocal laser scanning microscopy.

Biodiversity of lung helminths in terrestrial mammals from Eastern Europe.

This review provides the results of many years of original studies of the authors published in different journals and compilations taking into account an analysis of literature data. The studies on biological diversity of lung helminths of terrestrial mammals were performed by the authors in Armenia, Bulgaria and Poland. Literature data on European Russia were also taken into account.

Nematodes of birds of Armenia.

The review provides data on species composition of nematodes in 50 species of birds from Armenia (South of Lesser Caucasus). Most of the studied birds belong to Passeriformes and Charadriiformes orders. One of the studied species of birds (Larus armenicus) is an endemic.

Species diversity of nematodes in domestic and wild ruminants of Armenia.

The review provides data on species composition of nematode parasites of cattle, sheep, goats and wild ruminants (Ovis orientalis gmelini, Capreolus capreolus, Capra aegagrus aegagrus) of Armenia. Six species of lung nematodes and 22 species of gastrointestinal ones have been registered in ruminants of Armenia. Five of the species listed in the review (Protostrongylus davtiani, Protostrongylus muraschkinzewi, Nematodirus davtiani, Trichostrongylus andreevi, Trichostrongylus skrjabini) have been first identified in Armenia.

Nematodes of rodents of Armenia.

This review summarizes known data on the species composition of nematodes in 24 species of rodents inhabiting the territory of Armenia (South of Lesser Caucasus). The studied rodents include members of some cosmopolitan species (Mus musculus, Rattus norvegicus, Rattus rattus), as well as endemic and narrow-areal species (Meriones vinogradovi, Spermophilus xanthoprymnus, Microtus schidlovskii, Mesocricetus brandti, Sciurus anomalus). The taxonomical identity of the nematode species reported by previous authors is discussed with regard to present knowledge about helminth fauna of rodents.