Even if a firefly squid (a firefly squid) belonging to tutuika Scirpus juncoides duck Doki family grows up, it is long torso six or seven centimeters and a small cuttlefish. There is an opinion called "a koika" (肥烏賊 / a baby crow robber) "pine cuttlefish" in old days. It seems to be an opening that Dr. Shozaburo Watase named that I came to be called a firefly squid a firefly squid on May 28, 1905. A scientific name is Watase near Shin till Lance(Watasenia scintillans)
Around April when the body just before laying eggs is made in season.
I am produced in the Japanese sea near the shore, but, as for a large flock of firefly squids being seen, Toyama Bay is famous. About 15km, a sea area to about 1.3km offings reaching Uozu-shi from the Joganji River right bank of Toyama-shi are appointed to a special natural monument of a country as "the firefly squid group play surface of the sea".
A good thing of the freshness is edible directly, but there can seem to be senbisentyuu and a saying parasitic worm in the internal organs. But there is not no problem if I heat.