Hai Collection, Middle Volume Radical: Fish (yú) Character: Zī Kangxi strokes: 19 Page 1472, Entry 01 Pronounced zī Name of a fish. Compendium of Materia Medica (Bencao): The zi fish resembles a carp, with a round body and a flattened head. It has soft bones and lives in shallow waters of rivers and seas. Wu Capital Rhapsody (Wudu Fu) by Zuo Si: Sharks, mullet, and guitarfish. Commentary: The mullet resembles the giant salamander and grows to seven feet long. This fish is found in the Wu Commandery, Kuaiji, and Linhai regions.