This figure is the Japanese Spined Loach (or Japanese striped loach), Cobitis biwae , model 22, and number 7 from the second series. This is a small, long-bodied loach endemic to Japan, there are numerous potential subspecies but no distinction was made with the model. There are actually a number of similarly-patterned loach species in many parts of Japan, but so far this is the only species specifically identified on figures.
