Narke japonica (English spelling) Narkejaponica

Japanese: Narke japonica（英語表記）Narkejaponica

...The Japanese name comes from the fact that it has an electric organ, and the English name is also electric ray. There are five species in the waters off Japan: Narke japonica (illustration), N. dipterygia , Crassinarke dormitor , Torpido tokionis , and T. californica . Of these, the Narke is the most commonly seen species, found in shallow waters south of central Japan.

From "Electric Fish"

...The discharge voltage is 50 to 60V. In the past, the electric ray Narke japonica (illustration) was used as a shock therapy for gout. In the wild, it hides in the mud on the ocean floor, and when prey animals approach, it surprises them, subduing them and paralyzing them with an electric shock.

*Some of the terminology that mentions "Narke japonica" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…和名は発電器官があることに由来し，英名もelectoric ray(電気エイ)という。日本近海にはシビレエイNarke japonica（イラスト），ハクテンシビレエイN.dipterygia，ネムリシビレエイCrassinarke dormitor，ヤマトシビレエイTorpido tokionis，ゴマフシビレエイT.californicaの5種がいる。このうちシビレエイがもっともふつうに見られる種類で，日本の中部以南の浅海に分布する。…