16 
The following list is arranged along a rude profile of 
the Head, from N.E. to S.W. 
(i) Two slabs near the stile on the path from the archery 
ground to Gwydfyd farm. 216 feet. 
(£) In the cutting over the yellow clay at Gwydfyd farm 
in a large loose boulder, three large and very per- 
fect burrows and part of a fourth, possibly of 
pholas crispata, a species of well ascertained qua- 
ternary occurrence. 350 — 60 feet* 
The same spot furnished a second boulder with 
ten holes.* 
( 3 ) The rugged hillside above, and to the west of the 
clay pit, yielded in the edges of beds in situ , well* 
preserved groups of holes at 370 feet and 435 feet, 
above the sea. 
(4) The first rock that breaks the sward on the south 
side of the path, up to the old telegraph station, 
after leaving the mine plateau, showed good holes, 
not to be confounded with the effect of atmo- 
spheric corrosion. 440 — 450 feet.* 
(5) In a reef which breaks the sward in the plateau 
S.W. of the telegraph hill, with worn beach stones, 
occurred a fragment with two holes. 570 feet.* 
(6) On the exposed reefs towards the south, the holes are 
not unfrequent. On the 2nd or 3rd reef, marked 
by a loose spherical boulder at its eastern end, a 
fallen slab of very hard stone, showed 27 holes. 
570 feet* 
(7) The next reef yielded good specimens at 540 feet,* and 
at 520 feet.* 
(8) The burrows occur in considerable abundance and 
good preservation, at Little Orme’s Head, especially 
on the topmost plateau. 
* In these cases specimens were produced. 
