| No. | Locality | Territory | Total loci | Heterozygosity Obs. | Exp. | Polymor-phic loci | |
|---|---|---|---|---|---|---|
|  1 | Alabama drainage, Taylor Creek, Greene County, Alabama | USA |  23 |  0.022 |  0.0198 |  0.043 | 
|  2 | Big Black drainage, Hays Creek, Attala County, Mississippi | USA |  23 |  0.011 |  0.008 |  0.043 | 
|  3 | Ohio drainage, Max Creek, Johnson County, Illinois | USA |  23 |  0.052 |  0.043 |  0.174 | 
|  4 | Pearl drainage, Lee's Creek, Washington Par., Louisiana | USA |  23 |  0.026 |  0.0254 |  0.043 | 
| Average | 23 | 0.028 | 0.024 | 0.076 | ||