A new aberrant species of the genus Sphaerostoma (Trematoda: Opecoelidae) from the Amur River basin

Sergey G. Sokolov; Sergei V. Shchenkov; Evgeniy V. Frolov; Sergei A. Vlasenkov

doi:10.11865/zs.2024406

PDF(3150 KB)

Zoological Systematics ›› 2024, Vol. 49 ›› Issue (4) : 352-360. DOI: 10.11865/zs.2024406 CSTR: 32106.14.zs.2024406

研究论文

A new aberrant species of the genus Sphaerostoma (Trematoda: Opecoelidae) from the Amur River basin

Sergey G. Sokolov1, Sergei V. Shchenkov2, Evgeniy V. Frolov3, Sergei A. Vlasenkov1

作者信息 +

A new aberrant species of the genus Sphaerostoma (Trematoda: Opecoelidae) from the Amur River basin

Sergey G. Sokolov1, Sergei V. Shchenkov2, Evgeniy V. Frolov3, Sergei A. Vlasenkov1

Author information +

文章历史 +

摘要

A new freshwater opecoelid species, Sphaerostoma tamarae sp. nov., is described from Rhynchocypris percnura mantschurica caught in the Syumnyur River (Amur River basin, Russia). This parasite species differs from all other congeners in the distribution of the vitelline follicles (restricted to the hindbody) and the morphology of the ventral sucker (strongly protuberant). Molecular phylogenetic analysis based on 28S rRNA gene sequences and the morphological analysis allow to tentatively assign the new species to the genus Sphaerostoma, without closing the question regarding the true genus affiliation of this species. In addition, the authors provide an argument for renaming the Plagioporinae to the Sphaerostomatinae.

Abstract

导出引用

Sergey G. Sokolov, Sergei V. Shchenkov, Evgeniy V. Frolov, Sergei A. Vlasenkov. A new aberrant species of the genus Sphaerostoma (Trematoda: Opecoelidae) from the Amur River basin[J]. Zoological Systematics. 2024, 49(4): 352-360 https://doi.org/10.11865/zs.2024406