394 
Y.N.U. : Marine Biology at Scarborough. 
It is intended to hold an indoor meeting of the Section in February 
next, and to have a Bryo logical week-end at Austwick next March. — 
J.F.R. 
: o : 
MARINE BIOLOGY AT SCARBOROUGH. 
During the week-end — September 22nd to 25th — the rocks and pools in 
South Bay, Scarborough, were explored by members of the Yorkshire 
Marine Biology Committee, two of the morning tides being most; favour- 
able for this purpose. An earlier date this year was impossible, as 
several members were occupied in the preparation of a marine exhibition 
in connexion with the Hull meetings of the British Association, and 
these meetings happened to coincide with particularly good spring tides 
which might have been more serviceable than those occurring a fortnight 
later. Those who were able to visit the exhibition in Hull probably did 
not think of the difficulties involved in procuring, transporting and 
keeping alive for fixed dates, delicate organisms taken fresh from the sea. 
Mr. Percival was in charge of the Committee's general section of marine 
animals, and he, for a week, managed to keep most of the creatures alive, 
in an atmosphere more or less inimical, by frequently renewing their 
baths of sea water. The sea water, upon which so much depended, was 
doubtless of the best quality, but, as it had been stored in 5 gallon tins, 
it had acquired a ferruginous tint. In future, no more canned sea water 
please ! Mr. Watson, of Sheffield, had a unique and splendid display of 
living tube -building worms brought together, at no little trouble and 
expense, from Yorkshire, Welsh, and South coasts ; he was, fortunately, 
able to be present, and give demonstrations, but even he jibbed at using 
tinted sea water for his worms. 
As a result of the Committee’s investigations several additions have 
been made to the Yorkshire lists of marine fauna. Nudibranchs are 
increased by Galvina farrani, G. picta, Facelina elegans, F . drummondi 
(specially numerous in August and September in Scarborough pools), 
Lamellidoris pusilla and Goniodoris castanea (discovered on Botryllus 
babius). A new orange -coloured sponge, Clathria seriata, was found on 
a limestone block at Filey. Mr. Percival got Spinther miniaceus , a small 
yellow scale worm, apparently rare, at Robin Hood’s Bay. Two or 
three specimens of Thyanozoon brocchii, a beautiful flat -worm with a pair 
of tentacles, were obtained at Scarborough. The only platyhelminths 
hitherto recorded being Leptoplana tremellaris and Cycloporus papillosus 
which were both in evidence this year. Coryne fruticosa, a hydrozoan, 
seems abundant at Scarborough, but has not been noted till now. Tealia 
digitata and Sagartia ornata are added to the list of anemones. 
Actinoloba plumosa, the plumose anemone, known to fishermen as 
‘ sea-paps ’ — a not inappropriate name for large forms seen dangling on 
harbour walls — was very much in evidence ; unusual numbers of young 
forms, in various stages of growth, were accidentally discovered, between 
tides, on the under surface of a long ledge of grey limestone, hidden by 
masses of fucus which had to be turned aside. A pure white variety 
occupied one site, and a red, almost scarlet, variety was on another site 
on the same rock, with an interspace of about three feet. One of these 
red plumose anemones had two mouths, and a double disc girdled by one 
set of tentacles ; it was under observation for five or six weeks, but 
showed no disposition to divide. The scarlet -fringed anemone, Sagartia 
miniata, continues to be prolific on the limestone rocks at the far end of 
Filey Brig. These rocks are all pitted, and in the pits appear (1 ) scarlet- 
fringed anemones ; (2) red siphuncular ends of Saxicavce, and (3 ) the 
red papillae of an occasional eolis, which simulate the tentacles of an 
anemone . 
Egg-coils of the Sea Hare, Aplysia punctata, were found at Cayton 
Naturalist 
