About Macrobrachium formosense Spence Bate, 1868
Macrobrachium formosense, commonly called the crane river prawn, is a species of freshwater shrimp belonging to the family Palaemonidae. This species inhabits streams and rivers in Taiwan and southern Japan, which includes the Ryukyu Islands. Adult Macrobrachium formosense have a carapace length that ranges from 10 to 20 millimetres, or 0.4 to 0.8 inches.