Camptocercus lilljeborgi Schoedler, 1862 种组（枝角目：异足目：盘肠科）的纵向梯度。

Longitudinal gradient in the Camptocercus lilljeborgi Schoedler, 1862 species group (Cladocera: Anomopoda: Chydoridae).

机构信息

Department of Invertebrate Zoology, Biological Faculty, M.V. Lomonosov Moscow State University, Leninskie Gory 112, Moscow 119991, Russia..

Department of Ecology, Institute of Biology and Biomedicine, Lobachevsky State University of Nizhniy Novgorod, Gagarin Avenue 23, Nizhniy Novgorod 603950, Russia..

出版信息

Zootaxa. 2021 Sep 29;5047(2):123-138. doi: 10.11646/zootaxa.5047.2.2.

DOI:10.11646/zootaxa.5047.2.2

PMID:34810776

Abstract

A detailed study of morphology of the rare phytophilous cladoceran Camptocercus lilljeborgi Schoedler, 1862 revealed that populations from Eastern Siberia and Far East of Russia belong to a new species. C. smirnovi sp. nov. differs from C. lilljeborgi in body shape, morphology of ventral margin of valves, morphology of postabdomen, and length of IDL seta 1 of the thoracic limb I. C. lilljeborgi s. str. is distributed in Europe and Western Siberia, therefore, the lilljeborgi-group provides an example of the western-eastern differentiation in Northern Eurasia. Some characters of taxa from the lilljeborgi-group are convergently similar to the characters of the species of genus Graptoleberis Sars, 1862; both groups are adapted to a snail-like crawling on the surface of water macrophytes.

摘要

对珍稀的植物性枝角类生物 Camptocercus lilljeborgi Schoedler, 1862 的形态学进行了详细研究，结果表明，来自西伯利亚东部和俄罗斯远东地区的种群属于一个新物种。C. smirnovi sp. nov. 与 C. lilljeborgi 在体型、腹缘形态、后腹部形态以及胸肢 I 的 IDL 刚毛 1 的长度上存在差异。C. lilljeborgi s. str. 分布于欧洲和西西伯利亚，因此，lilljeborgi 组为北欧亚大陆东西分化提供了一个例证。来自 lilljeborgi 组的某些类群的特征与 Graptoleberis Sars, 1862 属的物种特征趋同相似；这两个组都适应于在水面大型植物上类似蜗牛的爬行。