NATURAL HISTORY SOCIETY OF GLASGOW. 47 



denticles, as occurs in that species ; the margin, so far as visible in 

 most, being castellated. Their connection with, and occurrence 

 along with, the ringed capsules, make it evident that it is the same 

 Zoophyte. There may be a sexual difference between the two 

 capsules, but this has not been determined. 



From the ringed capsules, at all events, numbers of little 

 medusa3 are given off, and were seen swimming up and down the 

 glass of water. They are furnished with four tentacles, eight ly- 

 thocists, and the umbrella is bell-shaped, and appears to be rough 

 over the surface, the little papulae being thread cells. Not a few 

 were swimming everted like little hand-bells, the manubrium of 

 the medusa forming the handle. The power of swimming did 

 not seem to be diminished by their being turned outside in, 

 though the movements might not be so graceful as in the usual 

 form. 



Camjmmdaria flexuosa (Hincks) is extremely common on all 

 parts of the shore, and is also met with growing on Chorda jiliim. 

 The medusae of this Zoophyte are often everted, but none of this 

 species appeared to be mixed with the Clytia on the piece of 

 Chorda filum examined. 



Among other Zoophytes brought up by the dredge were Serhdaria 

 poli/zo7iias (Linn.) and S. argentea (Ellis and Solander), usually 

 growing on old shells, stones, and cinders. Antennularia Antennina 

 (Linn.), Phnmdaria Catharina (Johnston), and P. pinnata (Linn.) 

 The latter appears to be a favourite resort with the Caprellas, 

 numbers of these curious creatures being constantly found crawling 

 from branch to branch, or standing on their hind legs waving their 

 long antennae, and bending backwards and forwards in their usual 

 comical manner. 



Campanularia veriicUlata (Linn.) was frequently covered with a 

 curious Polyzoon, Pedicellina echinata (Sars), rising from a stem 

 which creeps along one side for a short distance, and then t\\anes 

 round the stem or branches of the Zoophyte. From this stem a 

 short stalk arises, with little spines projecting at right angles 

 from its side, and terminates in a rounded head, which forms 

 the Polypide. What strikes one at first sight on watching these 

 minute animals is the power of bending this stem, and so curving 

 it as to bring the head down to touch the Zoophyte to which it is 

 attached, and then it is curved back to touch it again on the other 

 side, and so for a few times this irregular action is maintained till 



