1, the pennant fish has a peculiar shape, it is a kind of long and slender cuttlefish, some written as than tube fish, Dalian, Qingdao and other places are also known as sea hare.

2, the penpipe fish is also known as the Japanese gun squid, also known as penpipe octopus, small squid, U-octopus, from the appearance of a carcass is a slender cuttlefish.

3, penniped belongs to the cephalopods, gun squid family, carcass length of up to 15 cm, the shape is similar to the squid, but compared to the squid is short and small, the body is short and wide.

4, some places also called it "sea hare", because this penniped fish escape quickly, can be said to be as quiet as a child moving like a rabbit.