Uroteuthis chinensis, also known as the Hanchi (Korean:한치),Taiwanese squid (Mandarin Chinese:台灣槍烏賊) or mitre squid, is a species of squid in the west Pacific Ocean, including the China Sea.

Characteristics U. chinesis is a cephalopod which means that it feeds by using tentacles to pull food into its sharp beak. Cephalopods have radula's which are similar to tongues that help them grind up the food they eat so they can digest it. Reproduction occurs once in a lifetime because cephalopods die shortly after reproducing. During mating the male squid uses a specialized arm called a hectocotylus to fertilize the female with his sperm. The body is elongated, tapered, and the end of the tail is tapered. There is no longitudinal midline on the ventral surface. The average carcass length of mature specimens is 30 cm and the aspect ratio is 7:1. There are two fins on the side of the tube, the fins are diamond-shaped, and the length of the carcass is greater than 2/3, making the carcass of the spear look like a rocket, hence the name. Like other calamari species, two of the ten tentacles of this species are longer, the wrist style is generally 3>4>2>1, and there are 2 rows of suckers.