58 
ANNIE MATTHEWS. 
a stolon-like outgrowth on the opposite side of the parent’s 
base and with its dorsal mesenteries likewise turned towards 
the original polyp (Text-fig. 20). By April 30th the parent 
polyp bore ten pinnules on the tentacles, many parents 
showing two buds, and one bearing three (Text-fig. 21). The 
second bud showed no definite relation to any mesentery, 
while the third one lay between the first and second (Text- 
fig. 21, a v b u , and Ci). By mid- July the colony, which consisted 
on April 30th of four individuals, had altogether produced 
eight buds by stolonal gemmation, and these lay in a circle 
around, and all with their dorsal mesenteries turned toward 
the original polyp (Text-fig. 22), and therefore with the long 
axis of the mouth lying always along a radius. Possibly this 
arrangement would facilitate a current of water and food 
upwards through the young buds from the parent polyp, as 
the dorsal filaments produce an upward current in Alcyonium 
(Hickson, 3a, and Wilson, 17). Other polyps in the bowl had 
also produced eight buds, and the rest from six buds down- 
wards (Text-figs. 23 and 24). On September 16th it was 
found that several colonies had produced about thirty-two 
individuals, while others were not nearly so far advanced. 
The younger colonies still retained their circular outline, but 
the older ones had lost it. One had become quite oval 
because barnacles had prevented its lateral expansion. 
After the production of the first circle of eight buds a 
second row forms outside these and alternate with them^ 
giving two concentric rows (Text-fig. 25). The second row 
then increases greatly in number, and, later, young buds 
appear between the parent of the colony and the first row 
(Text-fig. 25). In still older colonies this regular system 
becomes obscured, young and old polyps being irregularly 
scattered throughout the colony. It was found that colonies 
dredged in the Sound at this date and on the Rame-Eddystone 
grounds contained a fair proportion of examples of similar 
size to those reared on the raft. 
