PENLLACH (PEN-LLACH), a parish, in the union of PWLLHELI, hundred of COMMITMAEN, Lleyn division of the county of CARNARVON, NORTH WALES, 10 miles (W.) from Pwllheli; containing 261 inhabitants. This place derives its name, signifying " the head of the rock," from its situation at the extremity of some rocks on the coast of St. George's Channel. It is composed of a comparatively small portion of arable and pasture land, inclosed and in a good state of cultivation; and the inhabitants are principally employed in agricultural pursuits, except during the season of the herring-fishery, which is carried on to a considerable extent. Of the great quantity of herrings taken on this coast, part is salted and sent coastwise for the supply of distant markets. The return of the rateable annual value of the parish is £1098. 17. 1. The living is annexed to the rectory of Llaniestyn; and the tithes have been commuted for a rent-charge of £190. The church, dedicated to St. Mary, is not distinguished for any architectural details of importance. Two benefactions in money, amounting to £12. 10., have been lost to the poor, in consequence of having been lent to a farmer who became insolvent some years since. Cevnamwlch, the birthplace of Bishop Griffith, is included within the limits of the parish.