扁肢副匙指蝦Paratya compressa De Haan, 1844 

是分布最北的黑殼蝦種類之一，新的研究確認了其分布區(qū)。從日本海沿岸到彼得大帝灣之間的廣大區(qū)域的河流里均有分布（圖們江流域可能也有？）該該研究還把該種和北方副匙指蝦Paratya borealis區(qū)分開來。

其實我只是想給你們看看生活在最北邊的黑殼蝦長啥樣(?_?)

報道原文

One of the most northern representatives of the family Atyidae, an amphidromous shrimp Paratya borealis Volk, 1938 (Crustacea: Decapoda: Atyidae), is considered as a junior synonym of Paratya compressa (De Haan, 1844 [in De Haan, 1833-1850]) based on morphological and genetic investigations of the specimens collected in rivers flowing into Peter the Great Bay and Posyeta Bay along the Russian coasts of the Sea of Japan. The study greatly increases the area of distribution of P. compressa to north for more than 1000 km and suggests that the species probably inhabit rivers flowing into the Sea of Japan also along North and South Korean coasts.