SILIAN (SULLEN), a parish, in the union of LAMPETER, upper division of the hundred of MOYTHEN, county of CARDIGAN, SOUTH WALES, 2 miles (N. by W.) from Lampeter; containing 366 inhabitants. This parish, which is situated in the southeastern portion of the county, derives its name from the saint to whom its church is dedicated, who flourished during the earlier part of the sixth century. It is surrounded by the parishes of LlanvihangelYstrad, Bettws-Bledrws, and Lampeter; and consists of 2100 acres, by computation, of which rather less than one-half is arable, and the rest alternately meadow and amble, there being no woodland. The general character of the surface is hilly: the lower parts are tolerably fertile, but the uplands less productive; and both are employed principally in depasturing sheep, and raising the different varieties of corn. The small river Dulas, which falls into the Teivy, circumscribes the parish on the west and south, and there is also a brook called the Tawola. The village is in some degree enlivened by its situation on the old turnpike-road leading from Aberystwith, in this county, to Lampeter; and another from Rhaiadr, in the county of Radnor, to the same place, intersects the parish. The living is consolidated with the vicarage of Llanwnnen. The church, dedicated to St. Sullen, and very romantically situated, was rebuilt from the foundation, in 1839, in the early English style, and is 35 feet long by 19 broad, containing about 200 sittings, all of which are free; the font, which is circular, and of antique design, is ornamented with four human faces. In the churchyard is a rudely sculptured monument of stone, now scarcely a foot above the surface of the ground, ornamented on one side with Runic knots, and on the other with zig-zag lines. There is a Sunday school, in which about 15 children are gratuitously instructed; and a bequest of 10s. per annum by Samuel Evans, in 1706, is distributed among the poor not seeking parochial relief.