22 
MARINE FAUNA OF SI. ANDREWS. 
rounded-oblong, and the fibres are firmly felted together *. In 
this state the present species is stripped of its minute branches, 
and feels bristly and crisp. The same rolled masses (also 
chiefly composed of an Obelia allied to the present form) were 
brought from the shore of a New-Zealand bay by Dr. Lauder 
Lindsay, who kindly sent them to me. They are formed in a 
similar manner to the well-known balls in Loch Tay, where 
the rolling action of the waves produces perfectly round masses, 
often as large as a spherical shot of thirty or forty pounds, com¬ 
posed of the linear leaves of the larches and pines which shade 
its margin. Miss M‘Leod, of Paible, brought me spherical 
masses of a similar description from a freshwater lake in 
South Uist, the species in this case, according to Prof. Dickie, 
being Cladophora glomerata. 0. longissima affords a favourite 
site for young mussels. 
Obelia dichotoma , L.; Hincks, Brit. H. Z. vol. i. p. 156. 
Not common ; parasitical upon a piece of seaweed from the 
laminarian region, and reaching about 3 inches high. 
Genus Campanularia, Lamarck. 
Campanularia volubilis , L.; Hincks, Brit. H. Z. vol. i. 
p. 160 . 
Common on crabs, the stems of Sertularia argentea and 
other zoophytes from deep water. It is a smaller and more 
delicate species than C. verticillata. The shape of the cup 
and the very distinct u spherical ring ” below distinguish it 
when the gonothecse are absent. 
Campanularia Hincksii , Alder; Hincks, Brit. H. Z. 
vol. i. p. 162. 
Occasionally found on the stems of Antennularia antennina 
from the deep water of the bay. This species presents certain 
* One of these masses so closely resembled the chignon lately in vogue 
that it was secretly used by a patient for this purpose; and I learned that 
it was only the disagreeable abundance of sand in its tissue that saved it 
from further duty in this respect. 
