【Reading】おにかさご

【English Name】Devil Scorpionfish

The onikasago (scorpionfish, Scorpaenopsis cirrosa) is a saltwater fish classified in the genus Scorpaenopsis of the family Scorpaenidae. Its scientific name is Scorpaenopsis cirrosa, formally described in 1793 by the Swedish naturalist Thunberg.

The genus Scorpaenopsis is widely distributed across the broad waters of the Indian and Pacific Oceans, with its northern limit around Japan, its eastern limit at Hawaii, and its southern limit reaching as far as Australia. As external features, the head is markedly laterally compressed, with 12 spines in the dorsal fin and 3 spines in the anal fin. Three or more spines are found below the eye.

This genus is known for the strong venom in its fin spines, so the utmost caution is required during preparation. As a whole, the genus is also notable for its long lifespan of 30-50 years.

In the world of sushi and Japanese cuisine it is treated as a white-fleshed fish, used for sashimi, thin slices, and as an ingredient in miso soup. Despite its rugged appearance, the flesh is said to be light and refined, and is especially fatty in winter. Fresh specimens are sometimes served as a nigiri sushi topping.