Marin Ivan, Palatov Dmitry
A. N. Severtzov Institute of Ecology and Evolution of RAS, 119071, Moscow, Russia. Biological Department, Altai State University, 656000, Barnaul, Russia..
Zootaxa. 2019 Nov 26;4701(1):zootaxa.4701.1.8. doi: 10.11646/zootaxa.4701.1.8.
The precopulatory mate guarding (amplexus) was observed in epigean Niphargus cf. magnus Birštein, 1940 collected near Tuapse in the Western Caucasus of Russia. The records of amplexing representatives of the subterranean genus Niphargus Schiödte, 1849 (Crustacea: Amphipoda: Niphargidae) are extremely rare, and there are no publications describing the amplexus in this amphipod genus. The presented report shows that Niphargus have a chemically stimulated short-time amplexus immediately after the molt of the female, similar to the representatives of relative epigean and subterranean gammaridean amphipods. It is relatively short in time, possibly, because of adaptation to inhabit narrows spaces in underground habitats.
在俄罗斯西高加索地区图阿普谢附近采集的陆生性近似大尼氏钩虾（Niphargus cf. magnus Birštein，1940）中观察到交配前的配偶守护行为（抱对）。关于地下生活的尼氏钩虾属（Niphargus Schiödte，1849，甲壳纲：端足目：尼氏钩虾科）抱对个体的记录极为罕见，且尚无描述该端足目属抱对行为的出版物。本报告表明，尼氏钩虾在雌虾蜕皮后会立即出现受化学刺激的短时间抱对行为，这与相关陆生性和地下生活的长足虾亚科端足目动物类似。这种抱对行为在时间上相对较短，可能是由于适应在地下栖息地的狭窄空间中生存。
