Japanese grenadier anchovy; Coilia nasus
A species of anchovy found in East Asian waters, known as a seasonal delicacy in Japan.
Etsu is a fish in season during spring.
In this region, etsu sashimi is a local specialty.
Kanji form is rare and may not be widely recognized; no priority is specified.
The origin of the Japanese name えつ is uncertain; it may be a local name for this fish.