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 Gladophora ghvierata. 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 " 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 ot 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. 



