Mention of shrimp mayflies, many people are not unfamiliar, shrimp mayflies dorsal and abdominal flat, the whole body armor, tropical colorful, look very good. Because it has a pair of large chelipeds resembling a praying mantis, so it is called "mantis shrimp". The mantis shrimp is neither a mantis nor a shrimp, and the creature is related to lobster and shrimp.

Mantis shrimp have many aliases, Dalian called "shrimp crawler", Beijing and other places called "Peppy shrimp", Shanghai called "Lai urine shrimp", China's southern and Southeast Asian areas. Called "mantis shrimp". In the cold waters of the north, the mantis shrimp is small, generally about 0.1 meters, while in the warm waters of the south can grow to 0.3 meters, the weight of a can reach about 400 grams.