Many people like to eat seafood, and among seafood they prefer shrimps, because there are many ways to cook shrimps, such as fried shrimps and shrimp burgers. Among shrimps, the most delicious ones are green shrimps and mud shrimps, because the meat of green shrimps and mud shrimps is relatively tender. The structure of the shrimp is relatively simple, with the shrimp body accounting for a large part of it, so there is a lot of shrimp meat to eat. The shrimp is introduced from abroad and is about seven or eight centimeters long. The following is a detailed introduction to the differences between green shrimp and shrimp. Of all the sea shrimps, prawns taste the most delicious. Because Chinese shrimp were almost wiped out by a viral infectious disease a few years ago, most of the artificially farmed shrimp on the market are whiteleg shrimp imported from abroad. The mud shrimp was originally a new type of shrimp cultivated in shrimp farms in Guangdong and other places. Because its body length is generally seven or eight centimeters, people later called shrimps of this length mud shrimp. The body of the shrimp is short and thick, and its entire body consists of two parts: the cephalothorax and the abdomen. The segments of the head and thorax are connected, and a large bone piece covers the back and sides, called the cephalothorax or dorsal carapace. The head and thorax are thick, the front part of the abdomen is thicker, and the back part gradually becomes thinner and narrower. The frontal horn is located in the center of the front of the head and thorax, with a straight upper edge and a sharp end. There is a sword-shaped protrusion at the front of the carapace, 11 to 15 teeth on the upper edge, and 2 to 4 teeth on the lower edge. The surface of the shrimp has a hard shell that protects the body. It is composed of 20 segments, including 5 segments on the head, 8 segments on the thorax, and 7 segments on the abdomen. It has 5 pairs of walking legs, the first 2 pairs are pincer-shaped, and the last 3 pairs are claw-shaped. Among them, the second pair of walking legs of male shrimp are particularly powerful, and the appendages of the sixth abdominal segment have evolved into a powerful tail fan, which plays a role in maintaining the balance of the shrimp body, and allowing it to rise, fall and retreat. The body of the shrimp is light brown, with 6 to 9 teeth on the upper edge of the frontal horn and no teeth on the lower edge. There is no central groove, the whip on the first antenna is about 1/2 the length of the cephalothorax, the dorsal surface of the 1st to 6th abdominal segments have longitudinal ridges, and the tail segment has no lateral spines. The first pair of legs have peduncles, while the last pair of legs do not have external limbs. The morphological characteristics of the closely related Neopenaeus are similar to those of the Neopenaeus razorfin, except that its abdominal swimming limbs are bright red. The male copulator is "Y" shaped, while the female copulator is "c" shaped, with a table-like central plate. |
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