It includes stomach, liver, heart, a pair of testis/ovaries, antenna gland of excretory organ, bladder and excretory orifice. That is to say, if we eat shrimp heads, we will eat shrimp excrement, semi-digested shrimp food, shrimp urine and other dirty things together.
Habitat:
Habitat in permanent streams and swamps, temporary habitats, including ditches and ponds. They are usually mixed with plants or wood chips in streams, which will destroy and weaken the banks. In areas where floods recede, they can be found in simple caves. Living in wetlands, lakes and rivers with shallow water bodies and abundant aquatic plants.
The species is found in a wide range of habitat types, including wetland meadows, underground karst systems, seasonal swamps and swamps, permanent lakes and streams, paddy fields, irrigation channels and reservoirs. This species can tolerate a series of environmental conditions including low oxygen level and high temperature.