32 - burial chambers
18 - standing stones
6 - standing stones plural
1 - cup-marked, (possibly two)
40ish - round barrows/multi barrows/cairns
122 - camps/ancient sites
29 - crosses/inscribed, plus extras in the churchyards
1 - roman remains
all above approximate, but its interesting that there are not as many s/s as I thought, how many other cupmarked stones are there in Wales? taken from Dillwyn Miles - Pembs Coast