Haddon and GrREEN — Secofid Rcpovt on Irish Marine Fauna. 33 
A little shallow- water dredging was done next morning in Glandore 
Harbour and Scullane Bay, and again further out some seven to eight 
miles south of Toe Head. Here we obtained a second small piece of 
Gorgonia verrucosa, and several specimens of a Pygnogonid, with their 
egg-capsules on Sydrallmania falcata. The bottom temperature was 
49° F., the surface being 61°, and the air 63° F. The bottom tempe- 
rature at the ITymph Bank was 48° F. 
On the representations of Mr. Green, we decided to pay a visit to 
Lough Hyne, which is approached by a narrow sound between high 
rocks expanding into a small lake-like inlet below the hamlet of 
Barloge. A long, very narrow passage thence leads into Loch Hyne, 
which is an oblong marine lake, about half a mile long, imbedded in 
wooded hills, with an island in the middle containing a ruined build- 
ing, known as O'DriscoU's Tower. Owing to the narrowness of the 
gorge leading to the lough, the tide rushes along like a mill-race. 
At low water, during spring tides, owing to a difference of level in 
the channel, there is a distinct waterfall of some four feet. The lough 
can only be entered or left with safety at certain states of the tide, but 
the level of the water in the lough itself varies very little with the 
tide ; it is, in fact, reported to be practically tideless. 
At one spot, resting on the rocks just below the surface of the 
water, were a number of the Purple Urchins, Strongylocentrotus lividus, 
the colours of which varied, as is usual, from purple to dark brown 
and dark green. Owing, probably, to their sheltered position, and con- 
sequent freedom from currents and large waves, these sea-urchins 
merely rest upon the rock, and do not excavate nests" for them- 
selves, as others do, on the exposed coasts of Clare and Kerry. This 
is possibly about the extreme eastern limit of this beautiful Echinoid 
on the southern coast of Ireland (see also p. 178 of Professors E. P. 
"Wright and J. Eeay Greene's British Association Report for 1858). 
Mr. Green drew our attention to the fact that the rocks here are 
covered with white and pink ISTullipores, and that he has always 
found the Purple Urchin associated with these calcareous algae. 
Lough Hyne varies in depth, twenty-five fathoms being the maxi- 
mum. The bottom deposit appears to be a dense fine malodorous mud. 
Oysters were formerly abundant ; but these and other Molluscs were 
killed in large numbers, a few years ago, by spring freshets after a 
heavy fall of snow. 
On attempting to leave the lough, we found the tide had turned, 
and the rapids of the channel were so boisterous, although it was only 
K. I. A. PKOC, SEE. III., VOL. I. D 
