Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Three new species of the fairy shrimp Eubranchipus Verill, 1870 (Branchiopoda: Anostraca) from northern Japan and far Eastern Russia
BMC Zoology ( IF 1.6 ) Pub Date : 2018-07-06 , DOI: 10.1186/s40850-018-0029-2 Norihito Takahashi , Takashi Kitano , Yushi Hatanaka , Yoshiyuki Nagahata , Yu A. Tshistjakov , Masayoshi Hamasaki , Hiraku Moriya , Keiji Igarashi , Kazuo Umetsu
BMC Zoology ( IF 1.6 ) Pub Date : 2018-07-06 , DOI: 10.1186/s40850-018-0029-2 Norihito Takahashi , Takashi Kitano , Yushi Hatanaka , Yoshiyuki Nagahata , Yu A. Tshistjakov , Masayoshi Hamasaki , Hiraku Moriya , Keiji Igarashi , Kazuo Umetsu
Small crustaceans in the order Anostraca that lack a carapace are commonly referred to as fairy shrimps. Eubranchipus is an Anostracan genus distributed across the Holarctic region. E. uchidai has been recorded only in Japan and has been considered the only species of Eubranchipus in the region. We obtained fairy shrimps from three previously unsampled locations (Shiretoko and Chokai in Japan, and Khanka in Russia). Each specimen shares morphological similarities with E. uchidai, but can be discriminated by the second antenna of males and the genital morphology of females. Based on these specimens, we describe three new species of fairy shrimp: Eubranchipus asanumai n. sp. from the banks of the Shiretoko Five Lakes (Japan: Hokkaido), Eubranchipus hatanakai n. sp. from the base of Mt. Chokai (Japan: Yamagata) and Eubranchipus khankanus n. sp. from the banks of Lake Khanka (Russia: Primorsky). Phylogenetic analysis of mitochondrial DNA reveals significant differences from other known Eubranchipus species, including E. uchidai. Both morphological and molecular analyses show that the three new species are similar to E. uchidai but constitute distinct species. Pronounced differences in female morphological features correspond to variability of the amplexus structure previously reported in the genus.
中文翻译:
来自日本北部和俄罗斯东部的三种新的神仙虾Eubranchipus Verill,1870年(Branchiopoda:Anostraca)
缺少甲壳的按甲壳纲排列的小型甲壳动物通常被称为仙子虾。Eubranchipus是分布在整个Holarctic地区的Anostracan属。uchidai大肠杆菌仅在日本有记载,被认为是该地区唯一的Eubranchipus物种。我们从三个以前未取样的地点(日本的Shiretoko和Chokai以及俄罗斯的Khanka)获得了仙女虾。每个标本与内尾肠杆菌都有相似的形态,但是可以通过雄性的第二触角和雌性的生殖器形态来区分。基于这些标本,我们描述了三种新的神仙虾种:Eubranchipus asanumai n。sp。来自知床五湖(日本:北海道)的岸边,Eubranchipus hatanakai n。sp。从山的底部 Chokai(日本:Yamagata)和Eubranchipus khankanus n。sp。从可卡湖(俄罗斯:滨海边疆区)的河岸。线粒体DNA的系统发育分析表明,它与其他已知的Eubranchipus物种(包括内栖大肠杆菌)存在显着差异。形态学和分子分析均显示这三个新物种与内旋大肠杆菌相似,但构成不同的物种。女性形态特征的明显差异对应于先前在属中报道的am结构的变异性。
更新日期:2018-07-06
中文翻译:
来自日本北部和俄罗斯东部的三种新的神仙虾Eubranchipus Verill,1870年(Branchiopoda:Anostraca)
缺少甲壳的按甲壳纲排列的小型甲壳动物通常被称为仙子虾。Eubranchipus是分布在整个Holarctic地区的Anostracan属。uchidai大肠杆菌仅在日本有记载,被认为是该地区唯一的Eubranchipus物种。我们从三个以前未取样的地点(日本的Shiretoko和Chokai以及俄罗斯的Khanka)获得了仙女虾。每个标本与内尾肠杆菌都有相似的形态,但是可以通过雄性的第二触角和雌性的生殖器形态来区分。基于这些标本,我们描述了三种新的神仙虾种:Eubranchipus asanumai n。sp。来自知床五湖(日本:北海道)的岸边,Eubranchipus hatanakai n。sp。从山的底部 Chokai(日本:Yamagata)和Eubranchipus khankanus n。sp。从可卡湖(俄罗斯:滨海边疆区)的河岸。线粒体DNA的系统发育分析表明,它与其他已知的Eubranchipus物种(包括内栖大肠杆菌)存在显着差异。形态学和分子分析均显示这三个新物种与内旋大肠杆菌相似,但构成不同的物种。女性形态特征的明显差异对应于先前在属中报道的am结构的变异性。