TRECLAS-with-MYDDVAY, a hamlet, in the parish of LLANARTHNEY, hundred of ISCENNEN, county of CARMARTHEN, SOUTH WALES, 7+ miles (E.) from Carmarthen: the population is included in the return for the whole parish. This hamlet is situated on the left bank of the Towy, and contains the parochial church, which stands within a short distance of that river, the views of which from this place are extremely beautiful and picturesque.