In summary, the present study has studied genetic-variation
in ten species/subspecies of Bithyniidae from Thailand using
COI. Sequence divergences were lower for intraspecific than
congeneric comparison. Using COI, 80% of the studied snail
taxa could accurately identified. In comparison with other
methods for identifying snails in this family, DNA barcoding is
quicker, easier and more applicable, it is suitable for young
snail identification which will be beneficial for understanding the
epidemiology of opisthorchiasis transmission.