267 , 
splitting of the primary mouth into smaller ones, while the septa 
formed afterwards then arrange themselves radially round these 
new mouths. Near Edam I found similar specimens of F. fungites 
Fig. 7. Fungia fungites. Twins, the result of coalescence 
of two buds of an anthocormus. To the left a 
specimen seen from above; to the right a specimen 
seen from below. % natural size. 
as well as of HF. actiniformis, but when examining the underside 
we clearly see that only one individual is concerned here, as only 
one scar is observable. *) 
Rather considerable divergencies in the size of the intergrowing 
buds may produce formations which remind us of budding at the 
underside of an adult individual, as is very beautifully typified in 
a specimen of F. actiniformis that I found near Edam. At the 
underside of this Fungia of 10 cm. diameter a young coral of the 
same species of 4 em. diameter is partially grown together with it.’) 
The septa of the smaller Fungia, facing the centre of the larger 
one, are ill-developed as they touched the ground. The other side 
possesses well-developed septa and in a living state, bore long 
tentacles, so that the mouth is rather remote from the centre. The 
larger Fungia has developed into a normal individual, the smaller 
one was covered by it entirely and was moreover partly overgrown 
with sea weed, which also blunted the sharp edges of the sear. 
In Fungia actiniformis there is generally at the underside in the 
centre a truncated conical platform, of which the flattened surface 
constitutes the most often sharply outlined scar of attachment to 
1) QUELCH (l.c. page 131) also records the occurrence of similar abnormal 
individuals. 
*) The ribs of the smaller Fungia are grown together at the indicated place 
with those of the larger one: if this were a case of budding, these ribs 
would grow by themselves. 
