来自古老奥赫里德湖的阿洛纳·贝尔德新物种（1843年）（枝角目：盘肠蚤科）

А new species of Alona Baird, 1843 (Cladocera: Chydoridae) from the ancient Lake Ohrid.

作者信息

Sinev Artem Y, LÓpez-Blanco Charo

机构信息

Department of Invertebrate Zoology, Biological Faculty, Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia. A. N. Severtsov Institute of Ecology and Evolution, Leninsky Prospect 33, Moscow 119071, Russia.

出版信息

Zootaxa. 2018 Dec 3;4526(4):434-446. doi: 10.11646/zootaxa.4526.4.2.

DOI:10.11646/zootaxa.4526.4.2

PMID:30651500

Abstract

A new species of Cladocera, Alona begoniae sp. nov. (Anomopoda: Chydoridae) was found in ancient Lake Ohrid. Its habitus and outer morphology is similar to one of the most common Palearctic species, Coronatella rectangula (Sars, 1862), and this can be the main reason why it has remained undiscovered. A. begoniae sp. nov. belongs to the elegans-group of Alona s. lato, a relict genus-level group not formally recognised yet as a separate taxonomical unit. Its habitat appears to be sandy and stony substrates (at 2-12 m depth) bare of vegetation. The position of this new species within the Alona-like anomopods is evaluated and similarities with other cladocerans in ancient lakes are discussed.

摘要

在古老的奥赫里德湖发现了一种新的枝角类动物——秋海棠阿洛纳（Alona begoniae sp. nov.）（端足目：盘肠蚤科）。它的体型和外部形态与最常见的古北区物种之一——矩形冠盘肠蚤（Coronatella rectangula，萨斯，1862年）相似，这可能是它一直未被发现的主要原因。秋海棠阿洛纳属于广义阿洛纳的秀丽组，这是一个尚未被正式认可为独立分类单元的残遗属级类群。其栖息地似乎是没有植被的沙质和石质基质（深度为2 - 12米）。评估了这个新物种在类阿洛纳端足目中的位置，并讨论了它与古代湖泊中其他枝角类动物的相似性。