2. Genetic diversity of eight T. heterochaetus locations based on COI gene sequences .
| Location (lineage) | n | S | H | Hd | π | k |
| n: Sample size; H: Number of haplotypes; S: Number of polymorphic sites; Hd: Haplotype diversity; π: Nucleotide diversity; k: Mean number of pairwise differences. WZ: Wenzhou; FA: Fu’ an; FZ: Fuzhou; ZS: Zhongshan; YJ: Yangjiang; QZ: Qinzhou; HP: Hai Phong; ND: Nam Dịnh. Lineage A=WZ+FA+FZ, Lineage B=ZS+YJ, Lineage C=QZ+HP+ND. | ||||||
| WZ | 40 | 32 | 23 | 0.949 | 0.009 12 | 6.465 |
| FA | 40 | 13 | 10 | 0.776 | 0.004 74 | 3.362 |
| FZ | 40 | 16 | 13 | 0.783 | 0.004 70 | 3.329 |
| ZS | 40 | 18 | 6 | 0.237 | 0.001 27 | 0.900 |
| YJ | 40 | 12 | 13 | 0.654 | 0.001 40 | 0.994 |
| QZ | 40 | 11 | 10 | 0.441 | 0.001 04 | 0.735 |
| HP | 40 | 17 | 16 | 0.645 | 0.001 59 | 1.124 |
| ND | 40 | 7 | 8 | 0.618 | 0.001 05 | 0.744 |
| Lineage A | 120 | 42 | 39 | 0.861 | 0.007 11 | 5.043 |
| Lineage B | 80 | 29 | 18 | 0.660 | 0.001 75 | 1.239 |
| Lineage C | 120 | 29 | 29 | 0.767 | 0.002 74 | 1.942 |
| Overall | 320 | 94 | 85 | 0.926 | 0.032 15 | 22.794 |