Hai Collection, Middle Volume. Radical: Fish (yú). 20 strokes. Page 1474, Entry 14.
According to the Extensive Rhymes (Guangyun), Collected Rhymes (Jiyun), Rhyme Compendium (Yunhui), and Correct Rhymes (Zhengyun), it is pronounced ji. It is the same as the character for a type of fish. According to the Materia Medica (Bencao), it is shaped like a carp, dark in color with a short body, a large belly, and a high back. In the poetry of Du Fu, there is a reference to fresh crucian carp sashimi with silver-thread ginger.
Also, according to the Extensive Rhymes (Guangyun), it is pronounced ji. According to the Collected Rhymes (Jiyun), it is also pronounced ji. The meaning is the same.
Also, according to the Collected Rhymes (Jiyun), it is pronounced zei. According to the Analytical Dictionary of Characters (Shuowen), the character for squid may be written with the element for immediately (ji) to form this character. See the detailed note under the entry for squid.