The distribution patterns are different.
Red shrimps are widely distributed in the Indo-West Pacific region and are produced in my country's coasts and lakes. Green shrimps are distributed almost all over the country, among which those produced in Baiyangdian area of ??Hebei Province and Taihu Lake in Jiangsu Province are the most famous.
The red shrimp has a well-developed forehead and a toothed ridge at the base, and the front is smooth and toothless.