From the naming motivation of the dialect word "gecko"(bihu), there are obviously four areas: northern area, central area, southern area and Southern Fujian dialect. The northern area in internally unified, with subtle defferences because of unique ovservation of people in different regions. The dialect of Southern Fujian is also internally unified. Central and southern areas crisscross mutually. Since the emigrants from the north came to the central area, the morpheme "tiger"(hu) has been brought in this area. In southern area, the southwest mandarin uses local morpheme "snake"(she). Therefore, the morphemes "tiger"(hu) and "snake"(she) once had been used at the same time in ancient literature after the creative naming motivation of Southern Fujian dialect, which used the morpheme"snake"(she).