摘要: Eucotylidae is a family of microphalloid digeneans parasitising as adults in the urinary system of birds. There are few molecular data on members of this family, and phylogenetic relationships of its genera and species are still unclear. Here we present new morphological and molecular data on a eucotylid species Tanaisia atra(Nezlobinsky, 1926).Specimens of T. atra were found in Eurasian Coot Fulica atra Linnaeus, 1758 in European and Asian parts of Russia and examined using optical and SEM microscopy and molecular techniques. We report the presence of a well-developed cirrus sac and different types of tegumental scales in this species for the first time. All molecular markers used in our study(ITS2region, 28S rRNA and cox1gene) indicate that T. atra isolates from European and Asian parts of Russia are conspecific. In phylograms based on ITS2 region and 28S rRNA gene sequences,T. atra clustered with other Tanaisia spp.

摘要: Siberian taimen Hucho taimen(Pallas, 1773) is a broadly distributed and popular sport fish with high economic value. However, low abundance and hard-to-reach habitat make the Siberian taimen a relatively understudied species. Here we describe the morphological variability of two size groups of Siberian taimen juveniles from the eastern(Amur River basin)and western(Kama River basin) parts of the species distribution. The largest morphological differentiation of Siberian taimen juveniles was observed at the inter-basin level. In the Amur River basin, Siberian taimen juveniles also differed morphologically even at sites located at a distance of 20 km from each other, which may be explained by a small home-range inhabitation of juveniles leading to the formation of their morphotype determined by local environmental conditions. The pattern of allometry varies in taimen from different rivers, which could be related to the ontogenetic shift of ecological niches and the level of heterogeneity of the river environment.

摘要: Baraeus orientalis Aurivillius, 1907 is classified within the family Cerambycidae(Lamiinae: Niphonini). It is found along the East to West coasts of Mid-Africa and has been recorded in Cameroon, Ethiopia, Kenya, Malawi, Namibia, Somalia, Tanzania, Zambia and Zimbabwe(Teocchi, 1997; Adlbauer, 2000, 2001; Tavakilian & Chevillotte, 2023). The type locality of B. orientalis is Kigonsera village in Tanzania. Its host plant has remained unknown until the present discovery. Adenia globosa Engler, 1891, a succulent plant belonging to the family Passifloraceae, is renowned for its medicinal properties and aesthetic value. The interception of B. orientalis on A. globosa represents a novel finding.

摘要: Based on available records, a comprehensive overview of the biodiversity and geographical distribution of Collembola in China is presented. A total of 735 species, 155 genera and 20 families were recorded in the checklist, including current name information, synonyms, geographical records, and bibliographic references. Taxonomic notes were added where necessary and Chinese translations were provided for genera and families. The following new combinations are proposed: Rambutsinella grinnellia(Wang, Chen & Christiansen, 2004) comb. nov. for Pseudosinella grinnellia Wang, Chen & Christiansen 2004; Rambutsinella hui(Wang, Chen & Christiansen, 2003) comb. nov. for Pseudosinella hui Wang, Chen & Christiansen 2003; and Rambutsinella tridentifera(Rusek, 1971) comb. nov. for Pseudosinella tridentifera Rusek 1971. In addition, certain species have been merged with their synonyms. This checklist includes articles published up to August 2023.