CEIDIO, a parish, in the hundred of DINLLAEN, county of CARNARVON, NORTH WALES, 6 miles (W. N. W.) from Pwllheli, containing 135 inhabitants. The soil on the higher grounds is sandy, and the lower grounds are composed chiefly of turbaries. The living is a perpetual curacy, in the archdeaconry and diocese of Bangor, endowed with £200 private benefaction, £1400 royal bounty, and £ 600 parliamentary grant, and in the patronage of T. P. Jones Parry, Esq. Previously to the above endowments, the minister's stipend was only £5 per annum, which small sum was the bequest of Owen Hughes, of Madryn, Esq. The church, dedicated to St. Ceidio, and situated on an eminence, is a small neat building, kept in excellent repair. A singular custom of dispensing altogether with the appointment of churchwardens prevails in this parish. An average annual expenditure amounting to £82 is applied for the support of the poor.