PORTERIN, or PORTRUN, a parish, in the barony
of ATHLONE, county of ROSCOMMON, and province of
CONNAUGHT, 3-½ miles (S. E.) from Roscommon, on the
river Shannon: the population is returned with Killenvoy.
It comprises 1133¾ statute acres, of which
1092, consisting of good arable and pasture land, are
applotted under the tithe act; and it contains a quarry
of excellent limestone, which is extensively worked and
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burnt for lime. It is a vicarage, in the diocese of Elphin,
forming part of the union of Killenvoy; the rectory is
impropriate in the Incorporated Society, to which and
to the vicar the tithes, amounting to £36, are payable in
equal portions. In the R. C. divisions also it is part of;
the union or district of Killenvoy. There are some
remains of the old church in the burial-ground, which
latter is very extensive.